Paper Lantern
AI generated eight bar chord arranger with nearby voicings, bass, arpeggios and MIDI and WAV rendering.
Screenshots
Screenshots supplied by the seller.
Description
AI generated. Paper Lantern is a browser composition tool for sketching harmonic progressions.
Arrange eight diatonic triads or seventh chords in major or natural minor. Choose root position or a nearby inversion heuristic. Each card displays the actual voiced notes and a diagram connects the voices.
Original synthesized harmony, bass and arpeggio share a single note plan. MIDI file encoding includes the actual notes, velocities, durations and tempo. Stereo WAV rendering captures one eight bar pass with a tail.
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 chord cards with scale degree editing
- Twelve key centers, major and natural minor
- Triads, sevenths and nearby inversion voicing
- Original bass, harmony and arpeggio synthesis
- Audio clock playback and chord audition
- MIDI file encoder and stereo WAV renderer
- Arrangement JSON files and embedded verification
What’s unfinished
- No notation editor or manual melody entry
- No live MIDI hardware or DAW synchronization
- No classical harmony rule checking
- Completed browser downloads and arrangement file round trip 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 browser application. Not a native DAW plugin. Enharmonic spellings use sharps. Voice leading is a simple inversion heuristic. Keep the tab visible. Hosted downloads may be blocked. No automatic persistence. Native plugin formats, external DAWs and physical audio latency are untested.
Listings are reviewed for completeness and clarity before publication. Approval is not a guarantee of quality, ownership, security or commercial success. Read the details and ask questions before buying.