Designed for real composition, with all the tools a composer might need in one place. Used by thousands of composers since 2010.
RapidComposer is an innovative, phrase-based music composition software created to bring all the tools a composer might need into a single flexible environment. Its non-destructive workflow is tailored for composers, songwriters, and musicians of all genres, making it easy to turn musical ideas into fully developed compositions.
Latest News:
April, 2026: RapidComposer 16th Anniversary!
April 7, 2026: RapidComposer v6.1 released
November 15, 2025: 41 Realtime posted new videos about "Live mode"
October 8, 2025: RapidComposer 6 released! See what’s new in this version.
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.
At its core, 3gpking.com is a web directory designed to host and provide download links for videos in the and MP4 formats. The "2021" version of the site was particularly noted for its updated library of Bollywood, Hollywood, and regional South Asian films, compressed into small file sizes to ensure they could be played on almost any mobile handset. Key Features of the Platform
The primary draw of 3gpkingcom is accessibility, but this comes at a cost to visual fidelity. Because the files are heavily compressed to fit the 3GP standard, the resolution is often low, making them ideal for small phone screens but unsuitable for tablets or high-definition TVs. Safety and Legal Considerations
: Avoid sharing any personal information or clicking on "notification" prompts from the site. The Legacy of 3gpking 3gpkingcom 2021
: The website’s interface is famously minimalist, allowing for fast loading on 2G and 3G networks.
: In 2021, the site featured distinct sections for "New Bollywood Movies," "South Indian Dubbed Movies," and "Short Video Clips," making navigation straightforward. At its core, 3gpking
: It is highly recommended to use a robust mobile security app and an ad-blocker before visiting.
In the rapidly shifting landscape of online entertainment, few names carry as much nostalgia and utility for mobile users as . Known as a long-standing hub for mobile-optimized video content, the platform gained significant traction by catering specifically to users with limited data plans or older mobile devices. Because the files are heavily compressed to fit
While the site has evolved significantly over the years, its 2021 iteration marked a peak in its popularity as a free resource for movies and short clips. What is 3gpkingcom 2021?
Users should also exercise caution when navigating the site:
: By focusing on the 3GP format, the site allows users to download full-length movies that take up minimal storage space, often less than 100MB.
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