Canon Cairn
AI generated canon composition workshop with an editable subject, four derived voices and separate MIDI tracks.
Screenshots
Screenshots supplied by the seller.
Description
AI generated. Canon Cairn is a standalone browser composition tool for exploring relationships between an eight event subject and up to four derived voices.
Edit diatonic degrees, rests, durations and velocity. Give each voice an entry time, diatonic shift, forward or inverted motion, retrograde order and rhythm multiplier. Select major, natural minor, Dorian or Mixolydian and hear the transformed note plan.
Inspect overlapping seconds and tritones as listening points, without claiming automatic counterpoint correctness. Three original subjects and seeded note variation are included. Export separate MIDI voice tracks or a synthesized arrangement WAV and save the full composition as JSON.
Condition
Development stage: Mostly built (seller-declared)
Seller-declared: provided by the seller, not independently verified by SellMyVibe.
- Solo creator
- Mainly AI-generated
- Under one month in development
- Tests included
- Setup guide included
- Demo available
What works
- Eight editable subject events with notes, rests, duration and velocity
- Four modal scale maps and twelve root classes
- Four independently enabled derived voices
- Entry delay, diatonic shift, inversion and retrograde
- Rhythm diminution and augmentation
- Voice level, pan and three simple preview tones
- Piano roll arrangement and contextual interval listening points
- Three original subjects and seeded note variation
- Format 1 MIDI with conductor and four voice tracks
- Composition JSON and stereo arrangement WAV rendering
- Transformation, MIDI pairing and rendered audio checks
What’s unfinished
- No notation engraving or classical counterpoint rule enforcement
- No microphone, hardware MIDI, native plugin or DAW sync
- MIDI does not encode the synthesized preview timbre
- Completed downloads, composition file round trip and external DAW import are not verified
Included assets
Editable source code
Setup and usage documentation
Original sound definitions
Audio verification checks and notes
Real running screenshot
Technologies
HTML, CSS, JavaScript, Web Audio API
Setup requirements
Open index.html or serve the folder with any static HTTP server. Use a deliberate play action to enable audio.
Dependencies and ongoing costs
No third party libraries, paid APIs or required services. A current Web Audio capable browser is required. Optional static hosting can be free.
Known limitations
AI generated standalone browser composer. A subject contains exactly eight events and an arrangement up to four voices. Pitch labels use sharps. Inversion uses the first sounding subject degree as its anchor. Retrograde reverses durations with the events. Notes outside MIDI 0 through 127 are omitted and counted. Preview is simple generated audio, not an orchestral sound bank. Loop includes a one second tail. MIDI note gates use 90 percent articulation. Hosted downloads may be restricted.
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