Record a new voice note
Microphone recording normally works when this app is opened from localhost or a secure website. Upload always works.
Not recording.
YOUR SONG LIBRARY
Every song stays separate
Create, open, duplicate or delete projects. The voice recording is saved with the project in this browser.
STEP 1
Capture and map your rough song
Record or upload your voice note, see the waveform, loop a phrase, and place section or chord markers at exact times.
Upload an existing voice note
No audio is attached to this project.
Song setup assistant
No estimate yetEstimate the likely key and tempo locally. On phones, the app uses a shorter analysis window to prevent Safari from failing. A clean 10–30 second solo-vocal or rhythmic loop works best.
Upload a voice note first.
Tap tempo & metronome
Tap the large pad below four or more times in time with the beat. Do not tap the general screen.
No tempo tapped.
Upload or record audio to display its waveform.
No loop selected
Section marker
Timed chord marker
Timeline markers
STEP 2
Write lyrics and audition harmony
Put a chord in braces before the word where it changes: {Cmaj7}Never {G/B}leave me.
Section headings can be written as [Verse 1], [Chorus] or [Bridge].
Playable song sheet
Progression ideas
Choose a family that matches the feeling. These are editable starting points.
Suggestions from detected melody
Suggestions improve locally as you choose chords and voicings. No account or internet is used.
Analyze your melody in Step 5 to receive timed chord possibilities.
STEP 3
Build chords, inversions and smooth bass movement
Hear expanded chords, add a slash bass, check the current melody note, and insert your choice into the song.
C
C4 – E4 – G4
No detected melody note at the current playhead.
Inversion choices
Roman numeralI
Chord tonesC, E, G
STEP 4
Detect, play and edit melody notes
The local analyzer works best on a clean solo vocal. It gives clues, not perfect transcription, and sends no audio to the internet.
Local voice-note analysis
No melody analysis completed.
If a loop is selected, only that loop is analyzed. Otherwise the app analyzes up to the first 120 seconds.
Piano recording controls
Not recording piano notes.
Computer keys: A W S E D F T G Y H U J K. Hold a key to record its real duration.
Melody roll
No notesSTEP 5
Build separate drum patterns for each section
Tap pads, use 32 steps, load genre starters, add a fill, and switch between intro, verse, chorus and bridge.
Finger drum pads
Beat controls
Click a step once for a normal hit and twice for an accented hit. Record pad taps to place your live rhythm on the grid.
Experimental mouth-beat converter
Local analysisBeatbox a short kick, snare and hi-hat pattern into a voice note. Select that part with the loop controls, then convert the loop to the current drum grid.
Best with clear “boom”, “ka” and “tss” sounds and little background noise.
STEP 6
Create an editable rule-based arrangement
This is not Suno. It uses your chords to make editable MIDI-style piano, bass, pad and arpeggio parts.
Arrangement summary
Add chords, then generate a plan.
Plain-language vibe setup
Rule-based · local onlyDescribe the starting feel in ordinary language, such as “sad but hopeful 90s R&B ballad” or “bright modern dancehall”. The app sets a sensible BPM, mode, drums, swing, arrangement style and energy without copying another song.
No vibe applied yet.
Reference-feel analyser
No copying · local onlyUpload a song you are allowed to use as a reference. The app estimates broad traits such as tempo, energy, brightness, density and stereo width; it does not copy melody or audio.
No reference selected.
Sketch mixer & audio bounce
Local WAVThis reduces rumble and evens out volume. It is not professional Auto-Tune or voice cloning.
Renders locally and includes the voice note when attached.
STEP 7
Export a complete handoff package
Keep your project, export individual MIDI files, or create one ZIP for a musician or producer.
Individual exports
Producer package
Creates a ZIP containing your original voice note, cleaned vocal WAV, vocal-plus-arrangement rough mix, separate WAV stems, lyrics, timelines, MIDI files, song information and producer notes.
Nothing exported yet.
Producer-readiness check
0/100Honest boundary
This local version organizes and develops your own musical ideas. It does not claim to create professional Suno-quality vocals, realistic full-band audio stems, or automatic commercial mixing and mastering without external AI services.