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RapidComposer is a rapid music prototyping software designed for composers, song-writers and musicians of all musical styles. Whether you are a seasoned professional or simply ready to take your music to the next level, RapidComposer is the complete solution you need for faster and more productive music composition.

  • Advanced tools for phrase editing, phrase generation, phrase morphing, phrase grouping, motif development, chord progression editing
  • Master track with chords (absolute or chord functions) which all phrases automatically conform to
  • Piano roll with scale notes,

What's New

Version 3.3:

Note: Now requires OS X 10.7 or later.

  • Redesigned chord palette, Chord Builder and Circle of Fifths added
  • New, improved progression editor built into the Chord Selector, "Progression Editor" tab was removed
  • The chord progression generator can use borrowed chords for more interesting progressions
  • New configurable 'Quick Suggestions'


  • OS X 10.7 or later

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RapidComposer User Discussion


Current Version (3.x)


Downloads 556
Version Downloads 91
License Shareware
Date 12 Sep 2017
Platform Intel 64 / OS X / Intel 32
Price $199.00
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