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Tool tip help - F1Organise Windows - F2PLAY Sound (button) - Click here to Play or Stop Keyboard shortcut: RETURN If out of sync, ADJUST SYNC...Pause (button) - Click here to Pause or ContinueVolume - Set master volume for Bounce Metronome. Part controls etc. also affect the volumePlay bouncing Balls (button) - Click to animate or halt BOUNCE...Fractal Tunes Dialog Star - Tip of the day - Fractal Tunes category - right click for neighbouring windows...Disable break at hyphen (buggy) (check box) - (no tooltip help yet)Make African Style Syncopated Polyrhythm (button) - Based on a technique from African Drumming, beat shifted polyrhythms with a syncopated feel...Make African Style Syncopated Polyrhythm (drop list) - Smallest note type for the African stye syncopated rhythmsMake African Style Syncopated Polyrhythm (editable) - (no tooltip help yet)Polyrhythmn to Syncopate (editable) - (no tooltip help yet)Notate syncopated polyrhythms with (drop list) - Enter number of hits, then total beats in bar For misses, enter the other way around: total beats then misses For details of all the rhythms in the droplist see the paper by Godfried Toussaint...Refresh (button) - Manually refresh the Euclidean Rhythms droplists in Make Euclidean Rhythms (Ctrl + 271) and the More version of Dance rhythms - or any other rhythms with skipped beats (Ctrl + 228) - though it may happen automatically...Reset drop list (button) - This erases the file and resets to the preset dropistEdit Droplist (button) - You can use this to edit the drop list as a text file, one line to an entry. Anything after an = in the line is a comment...Make Euclidean Rhythm (button) - Click this to make the Euclidean rhythm, also gets remade automatically when you select it from the droplist, or change any of the values in this listMake Euclidean Rhythms (Ctrl + 271) - An interesting way to make many of the irregular rhythms used in music world wide...Make Roll (button) - (no tooltip help yet)Make Roll (editable) - (no tooltip help yet)Buzz... (button) - Makes the notes faster and quieter like the "buzz roll" effect used by drummers - CLICK AGAIN TO SWITCH OFF...Adjust Swing (slider) - Move slider to adjust the amount of swing - OR click here then use LEFT and RIGHT keys, Page Up, Page Down, Home or End...Buzz... (editable) - Sets the volume of the OFF BEAT notes - as a percentage. Set this to the volume of the UNACCENTED BEATS for normal rhythms, or set this to over 100% to for syncopated (jazzy) rhythms...Auto switch off buzz roll settings - with message - when another rhythm is selected (check box) - (no tooltip help yet)Auto switch off buzz roll settings - with message - when another rhythm is selected (drop list) - Smallest note for the first Euclidean rhythm Set separately for each part Shortcut: SHIFT + SELECT to set for all the extra parts in Make Euclidean Rhythms (Ctrl + 271) in one go...Dance rhythms - or any other rhythms with skipped beats (Ctrl + 228) - Set a rhythm by entering a beat pattern of different note sizes - with examples...Notate rolls with smallest note value 1/ (drop list) - Smallest note type used for the rhythm e.g. 8 for quavers. You can select ANOTHER SIZE from the list to CHANGE THE NOTE VALUES throughout the rhythm...
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Play, Rhythms and Bounce/Rhythm/Drum Rolls, Syncopated Polyrhythms, etc - Click on button or other control in this image to jump to its tooltip.    

Previous: Dance rhythms - or any other rhythms with skipped beats

Next: For 3 or more Subdivisions - Auto Shuffle - Buzz Rolls - and Volume and Time Curves
Controls Common to Many Windows

Contents

Drum Rolls, Syncopated Polyrhythms, etc

Make African Style Syncopated Polyrhythm (button)

Based on a technique from African Drumming, beat shifted polyrhythms with a syncopated feel...

See http://bouncemetronome.com/video-resources/polyrhythms/syncopated-4-3-type-polyrhythms

These are based on a technique from African Drumming. When you play a polyrhythm such as say 4:3, you can shift the rhythms so that the two rhythms meet each other at different places in the bar, not just at the bar beat. This creates a syncopated effect - a feeling that you are playing "off the beat".

Make African Style Syncopated Polyrhythm (drop list)

Smallest note type for the African stye syncopated rhythms

Notate syncopated polyrhythms with (drop list)

Enter number of hits, then total beats in bar

For misses, enter the other way around: total beats then misses

For details of all the rhythms in the droplist see the paper by Godfried Toussaint...

Example,

5, 8 to make Euclidean rhythm using 5 hits spread out as evenly as possible over 8 beats

8, 5 to make it with 5 misses spaced as evenly as possible over 8 beats.

THE RHYTHMS IN THE DROP LIST

Godfried Toussaint published the paper in 2004, and an extended version in 2005.

I took this list of rhythms from his extended version of the paper.

He gives the list twice, first he goes into it in a lot of detail, sometimes paragraphs or pages about a single entry. He then gives the list in a shorter form one entry to a line..

I copied the list just as he has it, in the second half of his paper, though for some I added details from his longer list, either because it is a famous rhythm world wide (e.g. Tresillo), or because there were only one or two uses of the rhythm, so there was enough room to put them all on a single line.

His words "necklace", "aksak" and "euclidean string" need some explanation. You can read the details in his paper, but in short:

MEANING OF "NECKLACE"

This means a rhythm that is used, but only in one of the rotated positions.

MEANING OF "AKSAK"

The Aksak rhythms have 2 or 3 beat notes only. Also, they must have at least one 2 and one 3 beat note.

It is

  • "Authentic" if the number of beats is prime
  • "quasi-aksak" if the number of beats is odd
  • "pseudo-aksak" if the number of beats is even

MEANING OF "EUCLIDEAN STRING"

The notes form a "Euclidean string" if you get the same notes (up to rotation) when you make the first note longer by one beat and the last note shorter by one beat.

It is "Reverse euclidean" if you get the same rhythm when you do the opposite process - shortern the first note by one beat and lengthen the last note.

Godfried Toussaint found that some styles of music favoured Euclidean strings, or Euclidean rhythms that are not Euclidean strings which is his reason for grouping them like this, to find out more see his paper.

To find out more see The Euclidean Algorithm Generates Traditional Musical Rhythms (extended version) <http://cgm.cs.mcgill.ca/~godfried/publications/banff-extended.pdf>

Refresh (button)

Manually refresh the Euclidean Rhythms droplists in Make Euclidean Rhythms (Ctrl + 271) and the More version of Dance rhythms - or any other rhythms with skipped beats (Ctrl + 228) - though it may happen automatically...

This may be useful if you edited it, to see the effect of your changes. But it may do it automatically anyway.

This auto refreshes when you close your text editor.

It also auto refreshes when you save the file too - so long as the timestamp of the file changes (as it should do) - auto refreshes whenever the timestamp changes (with check for timestamp change every half second).

Reset drop list (button)

This erases the file and resets to the preset dropist

Edit Droplist (button)

You can use this to edit the drop list as a text file, one line to an entry. Anything after an = in the line is a comment...

The same file is used for all the Euclidean rhythmn droplists in Make Euclidean Rhythms (Ctrl + 271). Editing this one updates themm all.

FILE FORMAT

Just add your new rhythms to the list one to a line, as two numbers, like this:

8, 13 = Fibonacci word rhythm on 13 beats

Anything after an = in the line is a comment.

TEXT EDITOR

You can set the program you want to use to edit text files from Bounce metronome in File Associations - Options (Ctrl + 43). Defaults to notepad.

AUTO REFRESHES

The droplists get updated when you close the text editor you used to edit the list, or when you save the file (this works by comparing the time stamp to see if the file time has changed).

You can also click the Refresh button to refresh the list at any time - however this is normally not needed.

Make Euclidean Rhythm (button)

Click this to make the Euclidean rhythm, also gets remade automatically when you select it from the droplist, or change any of the values in this list

Make Euclidean Rhythms (Ctrl + 271)

An interesting way to make many of the irregular rhythms used in music world wide...

This is a surprising discovery by Godfried Toussaint. All you do is to take a number of hits that doesn't divide evenly into the number of beats in the bar. You then spread them out through the bar as evenly as possible using a particular algorithm. This generates many of the rhythms used in music world wide.

Make Roll (button) (Alt + R)

Make Roll (editable) (Alt + R)

Buzz... (button) (Alt + B)

Makes the notes faster and quieter like the "buzz roll" effect used by drummers - CLICK AGAIN TO SWITCH OFF...

This sets the bouncing balls to bounce faster and lighter like the bounces of a ball bouncing repeatedly - or a drumstick buzz roll,

After you switch this on you can adjust the amount of swing, and what to lilt the volumes to, in Beats volumes and times (Ctrl + 76)

If you have set a custom swing level and want to keep it when you switch this on / off then use use SHIFT + CLICK when you switch on to keep the swing amount.

SIMILAR EFFECT TO A BUZZ ROLL

You get a drum roll by holding the drum stick somewhat loosely, just enough to get a buzz effect as you hit the drum head - with the notes getting faster and lighter through the roll. For more about this, try some of the videos on youtube:

Video tutorial of a Buzz roll on Youtube

http://www.youtube.com/watch?v=PEIuuerxYUM

This option creates a similar effect to that.

YOU NEED GENTLER AMOUNTS OF SWING IN THE SWING SLIDER TO GET SAME EFFECT

Normally when you click on this button, you set it up with a medium swing of 250 to 150. This has roughly the same effect as a hard swing of 300 to 100 in normal use if you use it for e.g. a drum roll using two parts.

That's because this option switches on "Swing all parts by same amount" in Swing, Auto Accents and Time Signature Change - Preferences (Ctrl + 232) which increases the strength of the swing if you have more than one part which can be swung.

If you want to use your existing amount of swing, then use SHIFT + CLICK on this button which switches on all the features needed for the buzz roll except that it keeps your existing level of swing whatever it is.

WHAT THIS BUTTON DOES IN DETAIL

To get the most natural effect visually and for the sound, quite a few changes needd to be made:

Switches ON "For 3 or more subidivsions, adjust last subdivision towards first" and Switches OFF "For Volumes, adjust up beats and last of 3 or more subdivisions in the same way" in Swing, Auto Accents and Time Signature Change - Preferences (Ctrl + 232).

Switches ON Swing all parts by same amount in that window - this is useful for polyrhythms when you adjust the amount of swing.

Switches OFF "Shuffle - Auto pulse as 2 subdivisions if possible" - again in Swing, Auto Accents and Time Signature Change - Preferences (Ctrl + 232) - because you want to do rhythms with e.g. 4 subidivsions as a four beat buzz roll not as an alternating subdivisions type shuffle.

Also switches OFF "Shuffle entire Bar (i.e. shuffle alternate beats)" in the same window if you happen to have it on.

Switches on Lilt or swing, and Auto Accents.

Set the swing to a hard swing.

Sets the volume to lilt to to 40

Switches to stereo pan to follow the bounces in Stereo Pan (Ctrl + 50) to help make it a more immersive experience.

Switches OFF "Exaggerate small bounces" in Bounce Patterns in Bounce Patterns (Ctrl + 227) to make the motion as much like the natural motion of a bouncing ball as possible.

WHEN IT IS SWITCHED OFF

All of those things are reversed unless they were preset settings:

Switches ON "For Volumes, adjust up beats and last of 3 or more subdivisions in the same way" in Swing, Auto Accents and Time Signature Change - Preferences (Ctrl + 232).

Switches OFF Swing all parts by same amount and switches ON Swing part with most beats only.

Switches ON "Shuffle - Auto pulse as 2 subdivisions if possible" - again in Swing, Auto Accents and Time Signature Change - Preferences (Ctrl + 232)

Switches OFF Lilt or swing, and Auto Accents.

Switches to auto pan by parts in Stereo Pan (Ctrl + 50).

Switches ON "Exaggerate small bounces" in Bounce Patterns in Bounce Patterns (Ctrl + 227).

Adjust Swing (slider)

Move slider to adjust the amount of swing - OR click here then use LEFT and RIGHT keys, Page Up, Page Down, Home or End...

Buzz... (editable) (Alt + B)

Sets the volume of the OFF BEAT notes - as a percentage. Set this to the volume of the UNACCENTED BEATS for normal rhythms, or set this to over 100% to for syncopated (jazzy) rhythms...

For rhythms with three or more subdivisions, this the volume of the quietest subdivision - as percentage of the main beat volume. The quietest note is usually the last or the second last, depending on the settings in Swing, Auto Accents and Time Signature Change - Preferences (Ctrl + 232)

Auto switch off buzz roll settings - with message - when another rhythm is selected (drop list)

Smallest note for the first Euclidean rhythm

Set separately for each part

Shortcut: SHIFT + SELECT to set for all the extra parts in Make Euclidean Rhythms (Ctrl + 271) in one go...

This is the note used as the smallest note for the Euclidean rhythms. It is the beat unit used to make the other notes.

So for instance if you set this to quavers, then a two beat note is a crotchet, a three beat note is a dotted crotchet, and so on.

SET BEAT UNIT SEPERATELY FOR EACH PART

You can set the beat unit separately for each extra part using the drop menus in Make Euclidean Rhythms (Ctrl + 271). If you want to use the same beat unit for them all, use SHIFT + SELECT when you select from the first drop menu (this one) and all the others will change to match it.

COMBINED AS BEAT PRESERVING POLYMETERS OR POLYRHYTHMS

The beat unit makes a difference to the rhythms when you combine them as beat preserving polymeters.

Example: if a part uses semiquavers as its beat unit, it will play twice as fast as a part built up from quavers as its beat unit.

The beat unit make no difference to how they are played if combined as bar preserving polyrhythms. In that case, this only makes a difference to how they are displayed in Dance rhythms - or any other rhythms with skipped beats (Ctrl + 228).

Also if combined as polyrhythms, then the part which is longest is used to set the notation for the entire rhythm which is rounded down to a power of 4 so that all the parts are easy to compare using triplet type notation.

Dance rhythms - or any other rhythms with skipped beats (Ctrl + 228)

Set a rhythm by entering a beat pattern of different note sizes - with examples...

For drum rhythms such as paradiddle, and dance rhythms mixing crotchets, quavers and so on. You can select from a drop list of rhythms or enter a new rhythm.

Notate rolls with smallest note value 1/ (drop list)

Smallest note type used for the rhythm e.g. 8 for quavers. You can select ANOTHER SIZE from the list to CHANGE THE NOTE VALUES throughout the rhythm...

If the rhythm has dotted notes, or double dotted notes, then takes account of that e.g. a rhythm consisting of two dotted crotchets has the smallest note value an quaver (for the dot).

CHANGE THE NOTE VALUES

You can select from this drop list to change the smallest note value used for the rhythm.

If you try to make the largest note value larger than a semi-breve then you'll get a message and can't do it - but apart from that you can make the smallest note value whatever you like.

E.g. maybe you want the paradiddles shown using quavers - well just select 1/ 8 from the drop list and the entire rhythm will be updated accordingly.

Example, if the rhythm is (in O notation)

O o o O

Smallest note is o i.e. 1/8.

Change to 1/16 and the rhythm changes to

o . . o

Navigation (bottom of page)

Previous: Dance rhythms - or any other rhythms with skipped beats

Next: For 3 or more Subdivisions - Auto Shuffle - Buzz Rolls - and Volume and Time Curves
Controls Common to Many Windows

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