Daily Journal

The Daily Journal

The Daily Journal is your place to take notes about what you’re working on for the day.

You can also add entries for future dates if you like to plan ahead.

To add a new entry tap a date on the calendar.

Days with dots below them already have entries. You can jump to the entry by tapping the date.

You can move between entries by swiping the current note.

Practice Log

The Practice Log

The Practice Log is where you can view charts, statistics, and notes about what you’ve practiced.

Watch the video below for an overview of the features.

Shuffle Options

Shuffle and Displace Options

When shuffling the order of the rhythm in PolyNome there are some extra options.

When “Link Sounds” and “Link Accents” are switched on, the sounds and accents assigned to the rhythm will be moved as if they were attached directly to the notes.

If those switches are off, then the rhythms will be shuffled, but the sounds and accents will remain as they were. Hence, they will now line up with different notes in the pattern.

When “Ignore Rests” is switched on, groups of half note or whole note rests at the start and the end of a rhythm will be ignored when shuffling. This means that you could have 3 bars of a groove in Met 1 with a bar of rest at the end. In Met 2 you could have 3 bars of rest with a bar of a rhythm at the end. Shuffling the rhythm in Met2 with “Ignore Rests” switched on will mix up the note groups in bar 4 but leave the 3 bars of rest at the start untouched.

When “Link Mets” is switched on the shuffling and displacing of a rhythm in Met1 will be replicated in Met2. Note that if the rhythms are different in the two metronomes then they’ll be shuffled independently.

Recording PolyNome as an Audio File

Recording PolyNome output as audio

PolyNome supports Inter-App Audio. This means you can use it as a source for Garage Band or other apps that support Inter-App Audio.

It also supports Audiob.us

To record PolyNome output to Garage Band follow these steps:

  1. Make sure PolyNome is running.
  2. Launch Garage Band
  3. Tap the input button
  4. Swipe until you find the External Input page
  5. Tap the Inter-App Audio button
  6. Choose PolyNome or PolyNome Pro

Once you’ve completed these steps PolyNome will be the input source for your Garage Band project. You can record and save the audio file, or do whatever you like with it.

If you use Audiob.us you can select PolyNome as one of multiple inputs. You could, for example, record PolyNome and the iPhone headset mic together.

Sounds and Accent Displacement Settings


The “Link Sounds & >” switch links the displacement of sounds and accents. i.e. if you displace the sounds to the right the accents will also be displaced and vice versa.

The “Link Mets” switch links the displacement of sounds and accents between the two metronomes.  So, if you displace the sounds to the right in Met 1 they’ll also be displaced in Met 2 and vice versa.  This switch also links the transposing of melodic sounds in the two metronomes.

Practice Log

The Practice Log

The Practice Log is where you can view charts, statistics, and notes about what you’ve practiced.

Watch the video below for an overview of the features.

Ramp and Random Options

Ramp and Random options

In the Playlist Actions you can choose to Ramp or Randomize the tempos/timers/reps of the selected items.

When you select the items to apply a “ramp” to the order that you select them in determines the order that the ramp will be applied. The first selected item represents one boundary and the last selected item represents the other boundary.  For example, if the first selected item as a reps value of 1 and the last selected item has a reps value of 10 and there are 10 items, then you’ll end up with reps set from 1 – 10 in the order that you selected them.

If you use the Select All function to select all items, they are selected from the top down.  So if the reps for the first item was 1 and the reps for the last item was 10 then the reps would be ordered with 1 for the first preset and 10 for the last with 2-9 in between.

If the first item was set to reps=10, and the last item was set to reps=1, then the order would be reversed… 10,9,8…3,2,1

If the first and last selected items have a timer value set, or don’t have overridden reps set (you set overridden reps by tapping the gear icon to the right of the item) then the function won’t work.

What’s New In 2.2.8

What’s New in PolyNome 2.2.8

Check out the video below to see an overview of the new features of PolyNome 2.2.8. They’re also listed below the video.

The new features are:

  1. New Metronome sounds (Met1,2,3, etc.)
  2. New context menus – tap and hold on, above, or below the notes on Met1 and Met2 to see context menus for shuffling rhythms and displacing stickings.

If you have a couple of minutes to spare and enjoy using PolyNome I’d really appreciate you leaving a positive review.

Reviews are reset with each new update, but it’s quick to re-post once you’ve left an initial review.

To leave a review:

Click Here to view PolyNome in the App Store, then tap the Reviews button and “Write a Review”

I really appreciate the support!



Playlist Basics

Creating and Editing Playlists

This video shows you the basics of Playlist creation and editing.

The quickest way to create a Playlist is to tap the multi-select button on the Presets page, select the Presets you want to add, then tap the Actions Button at the bottom of the page and choose the Add To Playlist option.

Alternatively, you can tap the + button in the top right of the Playlist page and “Create New Playlist.” Once created you can tap and hold to load it. Then tap the + button to Add Presets To Playlist.

If you want to create new items directly in the Playlist (i.e. without first saving them as Presets) you can tap the + button and choose the Duplicate Item With New Name option.  This will duplicate the currently loaded Preset and add it to the Playlist with a prompt for you to give it a new name. The Preset won’t appear in the Presets Library.

If you later want to add a copy to the Preset library (so you can use it in other Playlists) you can load it from the Playlist and tap the Disk icon on the metronome page and choose “Copy to Preset Library”

Change Rhythm Page

Adding A Rhythm

To add a rhythm to Metronome 1 or Metronome 2 you need to go to the Change Rhythm page.

Do this by:

  1. Tapping a Metronome and choosing Change Rhythm or
  2. Tapping and Holding the rhythm area (denoted with the pink rectangles)

Change Rhythm Page

The Change Rhythm page is where you enter the rhythm you want PolyNome to play.

TIP: Another way of playing a rhythm is to enter a bar of 16th notes and assign sounds to just some of those notes. This is sometimes a quicker way to work and provides more flexibility.

a) The rhythm you’ve entered. You can swipe left/right in here to select different parts of the rhythm in order to enter or delete notes in the middle of the rhythm.

b) The time signature, number of bars filled and 16th notes remaining in the bar. Tap the time signature to change it.

c) Note type selector. Changing this affects the note options you see in section f). C stands for Common rhythms. There are 3 pages of these which you can use to enter most rhythmic ideas.

d) Use these buttons to delete parts of the rhythm you’ve entered.

e) Page selector. There are up to 3 pages of notes available (in section f) for each option.

f) Note entry buttons. Tap a button to add the note group to your rhythm.

g) Tap the Muting Off button to choose a Random Mute type. You can have PolyNome randomly mute notes, note groups (eg. a group of quintuplets), bars, or cycles. When muting is on you’ll see a slider where you can set the probability that random muting will occur.

The image below shows page 3 of the common rhythms. Tapping these buttons will add the component individual notes required to create the rhythm shown. Note that the rhythm may look different in the display eg. the bottom right button will enter a single 16th rest and 3 individual 16th notes.

Tapping the whole note, half note, quarter note or eighth note options will give you divisions of those notes in section f).  The image below shows page 1 of the divisions of a half note. Use these options for quickly creating polyrhythms of anything up to 1 – 24 vs 1 – 24.

Playlist Page

Playlist Page

The Playlist page is where you view the currently loaded Playlist.

A Playlist is a collection of Presets and Controls dictating whether they should be played one after another or individually, whether to automate tempo changes, etc. etc.

You can have as many Playlists as you like. They are managed from the Playlist Manager.

A good way to get familiar with the things Playlists can do is to view the Playlist Tutorial (from the PolyNome Menu under Tutorials). Then watch the info videos ⓘ associated with each item in the Example Playlist.


You can think of the Playlist page as consisting of 4 sections…


i) Playlist Menu Section

ii) Playlist Items

iii) Playlist Controls

iv) Playlist Transport Controls


Let’s take a look at each section.

i) Playlist Menu Section


a) Button to go back to the main page.  You can also just swipe to the right as the main metronome is always just to the left of this page.

b) View button. Tap this button to switch to Presets or Playlist Manager pages.

c) Edit button. Tap this to remove or re-order the playlist. You can also perform actions on items in the playlist by tapping this button, selecting items, then using the Actions Menu that appears at the bottom of the screen.

d) Add Button: Tap this for creating a new playlist or adding items, or a count in, to the existing playlist.

e) Playlist name: Tap this for print/email options or to load the Playlist Manager. Tip: You can press and hold to load the Playlist Manager directly.

f) Playlist Notes: Tap this to add notes for the Playlist, or to view existing notes.

g) Eye Notes button: Tap this to view Eye Notes. These are notes associated with the currently selected item in the Playlist.

Playlist Name Menu


Tapping the Playlist name ‘a)’ brings up a menu with options for emailing and printing the current Playlist.

Options for the layout of the PDF are available in the PolyNome menu under Preferences.

Tap and hold the Playlist name to jump directly to the Playlist Manager.

Playlist Add Button

Tapping the Playlist Add Button brings up the menu below.


a) Create New Playlist. This will take you to the Playlist Manager page and create a new Playlist.

b) Add Presets To Playlist. This will take you to the Presets Library where you can tap Presets to add to this Playlist. Note: You can add multiple copies of the same Preset to a Playlist.

c) Duplicate Item With New Name. This will duplicate the currently loaded Preset and add it to the Playlist. Note that this item will not appear in the Presets Library. You can modify the item once it’s created by going to the main Metronome page and modifying it to your liking. This is the quickest way to add new items to a Playlist if you haven’t already created them as Presets that you’d want to use in multiple Playlists.

d) Add Count In. This will add a Count In Preset to the top of the Playlist. Count in Presets differ from regular Presets in that they will only be played once even if the Playlist is set to loop.

Note: If you want a Playlist item to be available in the Presets Library (so you can use it in other Playlists) you can tap the Disk icon on the main page and choose “Copy to Preset Library”

Playlist Edit Button

Tap the Playlist edit button ‘a)’ to enter edit mode.


b) Select one or more items.

c) Use handles to rearrange items.

d) Tap the Actions button for actions to perform on the selected items.

e) Remove the selected items from the Playlist. Note: Removing items from a Playlist doesn’t affect the original Presets they were copied from.


ii)Playlist Items


Each row in a Playlist has a name, tempo, rep/timer value, time sig and length in bars of the pattern (taking into account the rep value) and a gear button to modify some of these items.

a) Play/Stop when reached indicator: These symbols appear when Auto Advance and Play When Advancing are turned on in Playlist Controls. A Play symbol above the downward arrow means the item will play when reached. A stop icon above the downward arrow means the item will stop when reached.

b) Tempo. This indicates the tempo of the current item. TIP: You can tap the padlock icon on the tempo at the bottom of the page to turn on Tempo Lock. This overrides the individual tempos of the items in the playlist meaning you can change them all at once.

c) Rep/Timer value. This indicates how many reps or how much time the item will play for. When the value is reached PolyNome will either stop, or move onto the next item in the list depending on the settings in Playlist Controls.

d) Gear button. Tap this to edit features of the item including Rep/Timer value, tempo, Play/Stop when reached and Eye Notes.

e) Eye Notes indicator. When this is blue it means the original Preset has notes. When it’s red it means the item has overridden notes (set by tapping the Gear button). To view the notes tap the Eye Button at the top of the Playlist page.

f) If you see the book icon or a download icon it means the Preset item was imported from the Public Library or from another user.


Eye Notes Font Size

Tapping the Eye Notes button (item ‘g)’ in list at the top of the page) brings up the Eye Notes viewer. This is a black panel which displays notes associated with the current Playlist item.


a) Font Size button. Tapping this brings up the Font Size selector. You can set the font size using the slider. Note that the Eye Notes viewer can be in a minimised state (as in the image abov) and a maximised state (where it takes up most of the screen). You can set different font sizes for each state.

b) Override button. When this is on the selected font size will apply only to the item that is currently selected. This means you can customise the font size for each item in the playlist to allow the notes to be the exact size you require. When the button is off you’re changing the font size for all items that don’t have override turned on.

c) Font size slider. Use this slider to modify the font size. The changes will be saved when you tap outside the pop up menu and it disappears.

d) Use this button to switch between minimised view (shown), maximised view (where the eye notes take up most of the screen), and Auto Maximise (where the notes viewer jumps to maximised view when playing, and back to minimised view when stopped)

e) Gear button. This is where you go to set overridden notes for a Playlist item. When enabled you’ll see a red eye icon in the Playlist item row.

iii) Playlist Controls

The bottom section of the table is the Playlist Controls and Playlist Time rows.

a) Playlist Controls. Tap on this row to set options for auto advancing, playlist looping, automatic tempo changes, tempo boundaries and auto advance sounds. Find out more by tapping the ⓘ button on the row.

b) Playlist Time row. Tap on this row to view options for setting Reps or Timer for all items in the Playlist and for setting the overall Practice time. Find out more by tapping the ⓘ button on the row.


iv) Playlist Transport Controls

At the bottom of the Playlist Page you’ll find the transport controls. These can be customised per Playlist using the button picker (see below)


a) Tempo Tweak buttons. Use these to increment/decrement the tempo. TIP: In the PolyNome Preferences menu you can choose whether the value of these buttons follows the value on the main page, or is +/-1.

b) Tempo. Tap the tempo to bring up the Quick Tempo Entry page and set the tempo for the current Playlist item.

c) Tempo Percentage slider. Use this to modify the tempo of all items in the Playlist by a certain percentage. This is useful if you have a Playlist that represents different sections of a song and the tempos are related. If you want to play the song a bit faster or slower you’ll want to make the modifications using the slider so the changes are relative.

d) Previous/Next buttons. Tap these to move backwards and forwards through the items in the Playlist.

e) Play button. Tap to stop/start. Tap and hold to bring up Button Picker.

f) Mute button. Tap this to mute the system volume.

Playlist Transport Button Picker

Tapping and holding the Play button will bring up the Button Picker. You can use this to hide buttons that you don’t require. For example, in a gig situation where all the tempos are correctly set for the songs you might not need to see the tempo or tempo tweak buttons, and you might not need the mute button. You can disable these to leave more space for everything else.

The button states are saved with each Playlist.



Presets Page

The Presets Page

The Presets page consists of 3 main sections:



i) Presets Header section

ii) Presets Section

iii) Actions section

i) Presets Header Section


a) Use this button to go back to the metronome page (you can also just swipe the screen since the Metronome is always to the left of the Presets)

b) Presets/Playlist/Playlist Manager button. This button tells you the page you’re on. If you tap it it expands to allow you to view the Playlist or Playlist Manager page.

c) Multi-select button. Tap this to select multiple Presets to perform actions on.

d) New Preset: You can use this to add a new Preset. Usually a better way is to use the Save As dialog on the Metronome page (when tapping the Disk button)

e) Sort/Arrange button. Tap the left side of this (the arrow) to sort ascending or descending. Tap the right side to sort by Created (date created), Recent (date modified), BPM (tempo), A-Z, or Length (song length, if assigned)

f) Tap Filter By Tag to filter the Presets Library to show only those associated with a certain Tag. You can apply multiple custom Tags to each Preset in the list. (learn more here)

g) Search. Tap in here to quickly search for a Preset. You can also tap the magnifying glass icon to launch search if the search bar is not visible.

The image below shows the expandable buttons in their expanded form.


ii) Presets Section

The Presets section lists all of your saved Presets. Tap a Preset to load it and swipe back to the Metronome on the left to play it.

Each Preset row displays the name in large blue letters. Underneath you’ll see the tempo, song length (if assigned) and any tags applied to the Preset.

The image below shows the Presets page while in multi-select mode (enabled with button ‘c)’ from the header section)

a) Tap this to cancel multi-select

b) Tap Preset rows to select them.

c) If song lengths are assigned to Presets then the sum of the lengths of the selected Presets is shown here. This is useful when creating setlists for a band.

d) Actions button: Tap this to perform actions on the selected Presets.

e) Share button: Tap this to share via email, messages, AirDrop or to upload to the Public Library.

f) Delete button: Tap to delete the selected Presets.

iii) Preset Actions Section

When you tap the Actions button above you’ll see the Actions menu.


a) Manage Tags: Tap this to add tags to the selected Presets; Remove All Tags from selected Presets; Edit the Tags applied to the selected Presets.

b) Add Presets To Playlist: Tap this to add the selected Presets to a Playlist. You’ll be given the option to create a new Playlist, Add to the Current Playlist, or select a Playlist from the Playlist Manager.

c) Add Count In To Presets: Tap this to add a Count In to the selected Presets. It will create a new Playlist, add the Presets, and add a Count In to the start.

d) Add AutoTempoChange: Tap this to add the selected Presets to a Playlist and set some basic parameters to produce an automatic tempo change. You can then edit the tempo change settings in Playlist Controls.

e) Paste Attributes: Tap this to Paste Attributes from the current clipboard Preset to the selected Presets. You can copy a Preset by tapping the Preset name at the top of the Metronome page and choosing Copy Preset. (Learn more here)


Change Accents Page

Adding Accents To Rhythms

To add accents to your rhythm you need to go to the Change Accents page.

Do this by either:

  1. Tapping a Metronome and choosing Change Accents, or
  2. Tapping and holding above the notation (where accents would be displayed)

Change Accents Page

On this page you assign accents to your rhythm. You can also set the swing and accent amount, though this is more easily done from the faders in the mixer on the metronome page.

a) Here you’ll see the accent pattern you enter. Tap and hold for an extra menu with accent options.

b) Here you see the rhythm that you’re entering accents for. Swipe left/right to change the highlighted note which indicates where the accent/non-accent will be placed. Tap the notes to jump to the Change Rhythm page.

c) Here you can see the sticking that you’ve entered for the rhythm. Tap this area to jump to the Change Sounds page.

d) Here you can change the Reset options to determine how PolyNome will assign your entered accent pattern.

e) Use the Clear All button to clear all Accents. The DEL button will delete the item above the highlighted note. The backspace button will delete the item to the left of the highlighted note.

f) Use this button to add a non-accent to the highlighted note.

g) Use this button to add an accent to the highlighted note.

h) Use the slider to determine the difference between the volume of accented and non-accented notes. When the slider is all the way to the left accents and non-accents will be the same volume. When the slider is all the way to the right non-accents will be muted so you’ll only hear the accented notes. Accent amount can also be set using the ‘>’ fader in the mixer on the metronome page.

i) Use this slider to change the degree of swing for the entered rhythm. Swing amount can also be set using the Swing fader on the mixer on the metronome page.


Accent Menu

Press and hold the notation or accents in the panel at the top to bring up the Accent Options menu where you can quickly invert the accent pattern you’ve entered.

Reset Options

The reset options define what PolyNome will do if you don’t fill the rhythm with accents/non-accents.

Reset Off : The entered accent pattern will loop from where it ends. This means it can go over the bar line and may change for each repeat of the pattern.

Reset Each Cycle: The entered accents will loop under the rhythm (if you didn’t fill to the end), but will always start over when the rhythm cycle repeats.

Reset Each Note Group: The entered accent pattern will start from the beginning with each new Note Group. A note group corresponds to a button press on the Change Rhythm page. For example, it could be a group of 4x16th notes, or it could be a single 1/4 note. This option is useful if you want to always accent the start of a subdivision group. You can enter > _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ and you’ll always get an accent at the start of the note group.

Fill Cycle with Non-Accents: This option will just fill the rhythm with non accents where your entered accent pattern finishes.

Change Sounds Page

Adding Sounds To A Rhythm

The Change Sounds Page is where you assign sounds to a rhythm in PolyNome.

To get to the page either:

  1. Tap a Metronome and choose Change Sounds
  2. Long Press the area under the rhythm (denoted by the pink rectangles below)

The Change Sounds Page

This is the page where you add sounds to the rhythm.

a) The rhythm you’ve entered. You can tap the notation to jump to the Change Rhythm page to alter the rhythm. You can swipe left and right on the rhythm to move the cursor position.

b) This is the area where you’ll see the letters you’ve entered and the cursor indicating the position.

c) Line 1 calculated display: This will show the sticking that will be applied to the rhythm for line 1. The light blue letters represent what you’ve entered, the grey letters indicate what PolyNome will automatically play. These change based on the Reset options. Tap and hold the line for extra menu options (when some content has been entered)

d) Line 2 calculated display: This is the same as for line 1. You can tap line 2 to enter letters for this line. Tap and hold the line for extra menu options (they only show up when there’s some content in at least one of the lines)

e) Reset Options: Tap this to change the Reset setting for the calculated sticking. The options have explanations on the page where you select them. Learn more here.

f) Use Clear Line to clear the selected line. DEL deletes the item to the right of the cursor position. Backspace deleted the item to the left of the cursor position. You can move the cursor position by swiping on the notation.

g) Use the R, L, K, H, Rest buttons to assign sounds to the rhythm. Tap and hold the buttons to change the sounds associated with the letters.

Tap and Hold Options

Tapping and holding on line 1 or line 2 brings up extra menu options:

a) Copy sticking from Line 1/2 will copy the sticking into the current line.

b) Switch Lines will swap the stickings of line 1 and line 2.

c) Swap Letters/Sounds will open a new page where you can choose to swap letters or the sounds assigned to them. Use this for switching stickings if you’re left handed, or for quickly modifying sticking patterns in other ways. Read more here.


The Sound Picker

Tapping and holding the R,L,K or H button will bring up the sound picker where you can assign sounds to those letters.

a) The letter you’re assigning a sound to. You can choose a different letter by tapping it and you’ll hear the currently assigned sound.

b) The chosen letter and sound assigned to it. Tap ‘Show’ to jump to that sound in the list of sounds.

c) Use the search bar to quickly find the sound you’re looking for. Typing “hi” for example will narrow the search down to hi hat sounds.

d) Tap the heart button to add a sound to your Favourites. They’ll always be available at the top of the list.

There are over 200 sounds to choose from including drums, percussion, clicks, voice counting, “left, right, tap, up, down, full”, practice pad samples, etc

Renaming Presets

How Do I Rename A Preset?

You can’t rename Presets in PolyNome, but you can save a copy with a new name.

To do this, tap the disk icon in the top right and “Save As” then choose a new name.

This will create a copy of the Preset with your new name. You can then delete the original.

Be warned that deleting the original will delete any Practice Events associated with it.

Copies of the original Preset in Playlists will not be affected.

The reason that Presets can’t be renamed is that Practice Events are tied to the original name of the Preset, as are copies in Playlists.


Importing PolyNome Files

Importing Presets/Playlists

Check out the videos below to learn how to import from Messages or Email. The final video explains the tags that are added to imports and how you can filter to view them.

Importing from Messages app

Importing from Email

Import Tags

Importing From Messages

Importing .pln files from Messages

iOS 10

  1. Tap the ⓘ button in the top right
  2. Tap “Attachments”
  3. Tap the .pln file to install (the most recent will be on the left)
  4. Tap the share button (the square with the up arrow)
  5. Choose “Copy to PolyNome”

iOS 8/9

  1. Tap the file
  2. Tap the Share button (the square with the up arrow)
  3. Choose to open in (or Copy to) PolyNome.

PolyNome will launch and the file will be imported. If it already exists you’ll be asked if you want to skip or overwrite.

Using Tags As Folders

Using Tags to Organise Presets and Playlists

Tagging in PolyNome is a very powerful way to keep your Presets and Playlists organised.

Multiple Tags can be applied to Presets and Playlists and you can then filter on a specific tag.

As well as using Tags to organise your Presets/Playlists you can also use them as a filter in the Practice Log.  This is a good way to narrow down the Practice Log view to just show a certain group of Presets.

Watch the video to learn about Tagging


Swapping Letters/Sounds

Swapping Letters/Sounds

By tapping and holding a line in the Change Sounds page you can choose to Swap Letters/Sounds.

This opens a page with some options for what to swap and how to swap them.

The purpose of this feature is to quickly reverse or change stickings. See the video below for some examples.

Swap vs Replace

Once you’ve chosen a source letter (labeled CURRENT ASSIGNMENT) and a FINAL letter you have to choose an action. The options are Swap (A < – > B) and Replace A with B

Let’s say your sticking is R L R R L R L L

If you choose the source letter ‘L’ and the Final letter ‘R’ then choosing the action Swap (A < – > B) will switch the letters around so you’ll end up with L R L L R L R R.  This is useful if you want to invert a sticking (if you’re left handed)

If you chose the action Replace A with B then all instances of your source letter (L) would be replaced with the final letter (R) and you’d end up with R R R R R R R R

Choose what to change

Here there are two options: Letter, and Sound Assignment

The above examples are what would happen if you tapped Letter as the item to change. If you chose Sound Assignment instead then the order of your sticking (R L R R L R L L) would remain the same, but the sounds assigned to the letters R and L would be swapped or replaced (depending on the Action you’d chosen).

You can choose both Letter and Sound Assignment if you wish.

So, let’s say the sticking you have is a paradiddle (R L R R L R L L) and you have the hi hat assigned to R and the snare assigned to L.  If you swap Letters and Sound Assignment then you’ll end up with the sticking L R L L R L R R but it’ll sound the same as the hihat sound will now be assigned to L and the snare to R. If you didn’t choose to swap Sound Assignment then the left hand would still be on the snare and the pattern would sound different.


A reason to use the Replace A with B option might be if you have programmed a linear groove into line 1 and copied it to line 2.  You might then want to replace all R with Rest on line 1, and all L,K,H with Rest on line 2.  That way you’re breaking the limbs between the 2 lines and can achieve other things.