"Drop me the score. Say a few words. I'll sing it for you."

AI sight-singing from MusicXML, via chat. No MIDI editing required.

What it does

Turn your MusicXML score into a singing demo in minutes.

SightSinger.app studio preview

Score - Singing Demo

Upload MusicXML and get a realistic vocal preview without a DAW.

Chat-driven Takes

Ask for parts, verses, and style changes using natural language.

Fast Iteration

Generate multiple interpretations quickly for practice or review.

Who is SightSinger.app for?

Indie Songwriters

"Instant vocal demo"

Get a convincing singing preview fast - no session singer, no studio time.

Choir & Worship Leaders

"Parts in minutes"

Generate SATB (or melody) practice tracks in minutes - save pianist hours of practice and recording time.

Beginner Singers

"Stepping stone"

Try singing with a score-accurate guide before investing in expensive lessons.

Quick Song Learners

"Learn it fast"

Pick up a few songs quickly for occasions without diving into theory or breath training.

SightSinger.app is NOT...

A DAW replacement

It doesn't replace professional vocal synthesis tools. But it can be used to complement them with fast, score-based vocal previews.

A human vocalist

It's a fast, score-accurate singing demo for rehearsal and practice. It doesn't replace human singers or human recordings.

A Song Generator

It doesn't generate songs from text prompts (like Suno). It sings the music you've already written and follows the score exactly.

A Voice Converter

It doesn't convert recorded vocals or require a base audio track. It sings directly from the score.

Why SightSinger.app?

Speak music, not MIDI.

FeatureSightSinger.appProfessional DAW (Digital Audio Workstation)
InterfaceNatural Language (Chat)Piano roll, parameters, phonemes
Learning CurveZeroSteep
FocusGlobal style control, demo qualityDetailed note-level control, production quality
Time to resultMinutesHours

How it works

01

Upload your score

Drop in MusicXML from MuseScore, Logic Pro, Finale, or Sibelius.
We parse tempo maps, part labels, and lyric syllables with music21.

02

Tell the singer

Use natural language to pick parts/verses and shape phrasing, tone, and expression.
Gemini Flash 3 calls internal MCP tools to map intent into performance parameters.

03

Generate the singing voice

SightSinger.app runs a custom singing synthesis pipeline to render a realistic vocal demo directly from the score.
Voicebanks are DiffSinger-compatible OpenUtau ONNX models, so adding new voices is straightforward.

04

Refine and share

Iterate quickly, render new takes, and export a shareable demo for singers.

AI Voices

Current AI voices are not cleared for commercial use.
Royalty-free voices will be added when paid subscription plans launch.

Raine Reizo icon

Raine Reizo

Version 2.0 - by suyu (UtauReizo) - 3 tone colors (normal/soft/strong)

Raine Rena icon

Raine Rena

Version 2.0 - by suyu (UtauReizo) - 3 tone colors (normal/soft/strong)

CREDITS
Website: https://rainerr.weebly.com/
Voiced, labelled & trained by suyu (UtauReizo)
Datasets used for parallel training:
  • Raine Rena
  • Fromage
  • PJS (relabel by UtaUtaUtau)
  • CSD (relabel by heta-tan)
  • opencpop (relabel by komisteng)
  • m4singer (relabel by nobodyP)
  • TGM

Pricing (Will be announced soon)

Credits keep usage predictable. Each credit covers 30 seconds of generated audio.

Credit Based Subscription

Paid plan credits will carry a 1-year expiry so you can cover peak seasons like Christmas.

Pay Only For Output

Credits are reserved pre-render, and consumed when audio is delivered, rounded up to the nearest 30 seconds.

Flexible Usage

Spend credits on one long take or many short parts and verses - it's up to you.

FAQ

Those tools are built for detailed vocal production and require note-by-note or phoneme editing. SightSinger.app generates quick song previews using natural language directions, without DAW or MIDI knowledge.

About Me

I'm Alan, a software engineer and volunteer musician. I love building things that solve real problems. I'm passionate about using AI to solve my own problem in music, and hopefully it can help you too.

BackgroundSoftware engineering: 20+ years (full-stack)Music Instruments: Piano, drums, ukuleleActive in a church choir and community concert bandMusic tech: Logic ProAI singing / vocal synthesis: OpenUtau, DiffSinger