Designed from the ground up for music composition.
Used by thousands of composers since 2010.
RapidComposer is a unique, non-destructive, phrase-based music prototyping software designed for composers, songwriters and musicians of all musical styles (for Windows and macOS: standalone, VST3, AU, AU MFX).
Latest News:
April 8, 2024: RapidComposer v5.2 released
October 16, 2023: RapidComposer v5.0 released! Read upgrade info
Create great sounding chord progressions, use piano-style phrases even if you’ve never touched a piano, auto-harmonize melodies, get chord suggestions, load MIDI files with chord detection, use the chord palette or the "circle of fifths" chart, RapidComposer will always assist you in songwriting.
The AI assistant (in both full and light editions) is able to provide suggestions for chord replacements, chord progressions, chord rules, phrases, and even song structure and tracks depending on the genre and/or mood you specified. This feature uses OpenAI services (models like GPT-4) so an OpenAI API key is required for usage (more in the FAQ).
Phrases always conform to the current chord and scale on the master track. Forget about tinkering with notes. Lay out the chords on the master track, or just drop a chord progression on it, with a key-press you can generate a harmony track with perfect voice leading. Start composing now!
Rhythm and phrase generators are included for various purposes. Create monophonic or polyphonic patterns. Generate melody. Use variations to change phrases non-destructively. Slice or change the rhythm of existing phrases.
RapidComposer offers several ways to select chords for the master track or chord progressions including Tonnetz and Circle of Fifths. Color chord buttons by consonance, common notes, tonality or suggestions. Set up chord rules for progressions. Use chord voicings for tracks, phrases or master track chords.
RapidComposer will generate a multi-track composition with chords based on your settings, using your phrases. Different types of workflows are supported. Not just when you are out of ideas.
* Full Edition only
Melodya is a motive generator and editor, which was integrated into RapidComposer as a Melody Editor tab in v4.0. By enabling the chords track, you can create a melody for a given chord progression, so two entirely different workflows are supported.
* Full Edition only
The large chord, scale and chord progression libraries are expandable. The docked browsers will let you search, preview, sort, group and display the items. A file browser and a CC envelope browser was added too.
The user interface and the keyboard shortcuts can be fully customized. Set your preferred colors, font size, button shapes, borders with several themes included. Scalable vector graphics is used, so the UI will look great with any font size. The UI looks the same on Windows or macOS and supports retina/HiDPI screens.
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