Designed from the ground up for music composition.
Used by thousands of composers since 2010.
RapidComposer is an innovative, phrase-based music composition tool, offering a flexible, non-destructive workflow tailored for composers, songwriters, and musicians of all genres. RapidComposer makes it easy to turn your musical ideas into reality.
Latest News:
February 9, 2026: RapidComposer v6.0.7 released
November 15, 2025: 41 Realtime posted new videos about "Live mode" and other tutorials: Live mode 1 - 2 - 3, Tutorial 1 - 2 - 3 - 4 - 5
October 8, 2025: RapidComposer 6 released! See what’s new in this version.
April, 2025: RapidComposer 15th Anniversary!
Upgrade to version 6 with a discount! Read upgrade info
Effortlessly craft rich chord progressions and utilize piano-style phrases, even without prior piano experience. Auto-harmonize melodies, receive chord suggestions, and load MIDI files with built-in chord detection. With tools like the chord palette and the Circle of Fifths chart, RapidComposer provides constant support to enhance your songwriting process.
Phrases automatically adapt to the current chord and scale on the master track, eliminating the need to adjust individual notes. Simply lay out chords on the master track or drop in a chord progression, and with a single keystroke, generate a harmony track with flawless voice leading. Start composing with ease today!
Included rhythm and phrase generators allow for creating a wide range of patterns, both monophonic and polyphonic. Generate melodies, apply variations to modify phrases non-destructively, and easily slice or adjust the rhythm of existing phrases.
Leverage an intelligent algorithm to generate optimal guitar chord fingerings based on your specific constraints. Easily edit fingerings directly on the fretboard. Convert tracks into editable guitar tablature with calculated, optimized fingerings. Export tabs seamlessly in MusicXML format for further use.
Suggestions by harmonic rules, borrowed chords, chord substitutions, pivot chords, diatonic and chromatic mediant chords, passing chords, bass and melody pedal tone chords, chords on scale, chord builder, chord voicing editor. With these tools, you'll always have guidance for selecting the perfect chords.
RapidComposer provides multiple methods for selecting chords for the master track or progressions, including the Tonnetz and Circle of Fifths. Chord buttons can be color-coded by consonance, common tones, tonality, or suggestions. Customize chord rules for progressions and apply chord voicings to individual tracks, phrases, or the master track.
With it, you can instantly create new multi-track compositions or phrases, or even let the engine continue an existing melody or arrangement. It’s a powerful way to spark creativity and explore new musical ideas inside RapidComposer.
* Full Edition only
Trigger and perform sections of your composition from a MIDI keyboard in real time, with per-track speed, transpose, and timing controls. Mouse triggering also supported. With LIVE Playback Mode in RapidComposer 6, your compositions are no longer static: they become expressive, playable instruments.
* Full Edition only
The AI assistant, available in both full and light editions, offers intelligent suggestions for chord replacements, progressions, rules, and even song structure based on the genre or mood you specify. Powered by AI models from multiple providers, this feature requires an API key from a supported service.
RapidComposer generates multi-track compositions with chords based on your settings and phrases, supporting a variety of workflows. It's designed to inspire creativity, even when you're not short on ideas.
* Full Edition only
Melodya is a motive generator and editor, which was integrated into RapidComposer as a Melody Editor tab. 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 extensive libraries for chords, scales, and chord progressions are fully expandable. Use the docked browsers to search, preview, sort, group, and display items. Additionally, a file browser and a CC envelope browser have been included for enhanced navigation.
Wrangham’s theory challenges the traditional "Man the Hunter" hypothesis, which attributes human evolution primarily to meat-eating. While he acknowledges that meat was important, he points out that even modern humans cannot survive on raw meat alone in the wild. Cooking was the necessary innovation that made meat (and tubers) viable long-term fuel sources. Conclusion
Beyond biology, Wrangham explores how cooking fundamentally altered human behavior. The need to maintain a fire and wait for food to cook necessitated a centralized "home base." This created a new social dynamic: the hearth. Catching Fire: How Cooking Made Us Human
In Richard Wrangham’s "Catching Fire: How Cooking Made Us Human," the author presents a compelling and transformative theory on human evolution. He argues that the mastery of fire and the subsequent practice of cooking were not merely cultural milestones, but the primary biological drivers that separated our ancestors from other hominids. Wrangham’s "cooking hypothesis" suggests that by predigesting food with heat, early humans unlocked a massive caloric advantage that reshaped our anatomy, social structures, and brains. The Biological Engine He argues that the mastery of fire and
The cooking fire became a site of social bonding and cooperation, but it also established the first sexual division of labor. Wrangham posits that the protection of the fire and the labor-intensive nature of gathering and cooking led to the development of "pairing" and early household structures. This social shift provided the stability needed for longer childhoods, further aiding cognitive development and the transmission of culture. A Departure from Tradition Conclusion Beyond biology
This dietary shift led to profound physical changes. Because cooked food is soft and energy-dense, our ancestors no longer needed the massive chewing muscles or long, complex digestive tracts required to ferment raw plant matter. This "energy trade-off" allowed the gut to shrink, freeing up metabolic energy to fuel the expansion of the human brain—an organ that is notoriously "expensive" to maintain. Social and Evolutionary Impact
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