Aria
A macOS piano-roll editor for the NEUTRINO AI singing synthesizer.
Place the notes, drop in the lyrics, and hear them sung. Everything you used to do before and after synthesis now lives on one screen.
Built to keep
you moving.
Synthesize, listen, fix. Every feature here exists to shorten that loop.
Piano-roll editing
Place a note, type a lyric. Drag, split, transpose and quantize with the same feel as your DAW.
Bulk lyric entry
Paste a whole line and Aria splits it syllable by syllable across your notes, keeping it singable.
f0 (pitch curve) editing
Redraw the synthesized pitch directly on screen — scoops, vibrato or dead-flat lines, exactly as you intend.
Waveform & phoneme view
The rendered waveform and phoneme timing sit right under your notes, so drift between lyric and sound is easy to spot.
Scale assist
Notes outside the key are flagged in colour, or locked to the scale — no more discovering a stray note after synthesis.
Issue detection & batch fix
Unsingable lyrics and empty notes are caught as you work. Where the fix is unambiguous, apply them all after a confirmation.
From import
to final polish.
Scores from other tools and songs written from scratch follow the same path.
Import or write
Open MusicXML or MIDI, or start from nothing. Import cleanup repairs lyric damage carried over from other tools.
Add the lyrics
Pour in a line and let it split by syllable, or select a note and type it in directly.
Synthesize
Call NEUTRINO from inside Aria. Progress and results stay in the app.
Polish
Redraw f0, check placement against the waveform and phonemes, then re-synthesize only the part you changed.
Requirements
| Platform | macOS 14 (Sonoma) or later / Apple Silicon & Intel |
|---|---|
| Languages | Japanese / English / Simplified Chinese / Korean |
| Import & export | MusicXML and MIDI import / WAV export |
| Synthesis engine | NEUTRINO (obtained separately) |
| Developed by | Studio Lumilune — NCAT LLC |
Aria does not bundle or redistribute NEUTRINO or any voice library. You will need to obtain NEUTRINO separately from its official site. Aria and Studio NEUTRINO are independent developers.
Getting ready for release
Release timing and update news are posted on X.