Sing2Notes

Spec sheet

What it does

Sing2Notes uses AI to convert sung vocal recordings into sheet music, MIDI and MusicXML.Read 21 Oct 2026 · klang.io

Purpose

Sing2Notes transcribes sung vocals into notes displayed as sheet music.Read 7 Oct 2026 · klang.io

Intended users

The maker presents the Klangio apps for use by music teachers, producers, vocalists, composers, and transcribers.Read 7 Oct 2026 · klang.io

API

Klangio offers a public application process for APIs covering vocal music transcription, source separation, beat tracking and chord recognition.Read 21 Oct 2026 · klang.io

Integrations

The Google Play listing names MuseScore, Sibelius, Ableton Live, Logic Pro, FL Studio, Cubase and GarageBand as compatible software.Read 21 Oct 2026 · play.google.com

Support

The maker directs users to a Help Center and a support chat for questions and issue resolution.Read 21 Oct 2026 · klang.io

Headquarters

Karlsruhe, GermanyRead 28 Sep 2026 · sing2notes.klang.io

Founded

2018Read 28 Sep 2026 · sing2notes.klang.io

Accuracy limitation

The maker says transcription quality depends on recording quality and difficult vocal passages may contain mistakes.Read 21 Oct 2026 · klang.io

API outputs

The API page says its transcription endpoint can produce MIDI, MusicXML, PDF or GP5 from piano, guitar, bass and vocal recordings.Read 21 Oct 2026 · klang.io

API pricing

The API Basic tier is free with 50 requests, 15-second maximum audio and one request per minute; paid Startup and Business tiers are listed at $99 and $499 monthly.Read 21 Oct 2026 · klang.io

API security

Klangio says credit-card payments for API plans are processed through a PCI-compliant banking partner.Read 21 Oct 2026 · klang.io

Audio formats

The service accepts formats including MP3, WAV, MP4, MIDI and FLAC.Read 21 Oct 2026 · sing2notes.klang.io

Company founded

LinkedIn lists Klangio as founded in 2018.Read 21 Oct 2026 · linkedin.com

Company headquarters

Klangio lists Karlsruhe, Germany as its headquarters and business location.Read 21 Oct 2026 · linkedin.com

Company legal name

The maker is Klangio GmbH, registered with the Mannheim local court under HRB 730768.Read 21 Oct 2026 · klang.io

Company size

LinkedIn lists Klangio in the 11–50 employee range.Read 21 Oct 2026 · linkedin.com

Compatibility

The maker says exported formats can be imported into software of the user's choice.Read 7 Oct 2026 · klang.io

Editing

Edit Mode lets users adjust notes inside the application.Read 21 Oct 2026 · klang.io

Exports

Sing2Notes exports sheet music as PDF, quantized and unquantized MIDI files, and MusicXML.Read 7 Oct 2026 · klang.io

Free demos

Users can make unlimited free demo transcriptions of the first 20 seconds of a recording.Read 7 Oct 2026 · klang.io

Help documentation

The Help Center lists 36 Sing2Notes articles across nine categories, updated October 1, 2026.Read 21 Oct 2026 · klang.io

Input methods

Users can upload audio, paste a YouTube link or record through a microphone.Read 21 Oct 2026 · klang.io

Inputs

Users can upload an audio file, paste a YouTube link, or record music directly in the app.Read 7 Oct 2026 · klang.io

Limit: mobile editing

A Chrome-Stats review says users cannot correct transcription errors in the mobile app and need desktop access.Read 21 Oct 2026 · chrome-stats.com

Limit: reliability

Chrome-Stats reports repeated complaints about failed uploads, failed transcriptions, crashes and corrupted files.Read 21 Oct 2026 · chrome-stats.com

Limit: transcription accuracy

Google Play reviewers report missing or flattened notes, incorrect timing and wrong keys.Read 21 Oct 2026 · play.google.com

Maker location

Klangio describes itself as a startup from Karlsruhe, Germany.Read 7 Oct 2026 · klang.io

MIDI export

The product provides both quantized and unquantized MIDI downloads.Read 21 Oct 2026 · klang.io

Mixed instruments

The maker says vocals can be transcribed while other instruments play simultaneously.Read 21 Oct 2026 · klang.io

Multiple instruments

The app can transcribe vocals while multiple other instruments are playing simultaneously.Read 7 Oct 2026 · klang.io

MusicXML export

MusicXML files can be exported for notation software workflows.Read 21 Oct 2026 · klang.io

Notable news: licensed training data

In 2026 Klangio announced it became the first company to license AI-training music data from GEMA through PLAI.Read 21 Oct 2026 · linkedin.com

Notable news: social-video input

Klangio announced on November 21, 2025 that its apps added transcription of Instagram Reels and TikTok clips.Read 21 Oct 2026 · klang.io

Piano roll

A piano-roll view is available for inspecting transcriptions.Read 21 Oct 2026 · klang.io

Playback

Users can listen to playback of generated transcriptions.Read 21 Oct 2026 · play.google.com

Praise: helpful output

Chrome-Stats summarizes that some users successfully generate sheet music and find the free version useful.Read 21 Oct 2026 · chrome-stats.com

Praise: support

An Apple reviewer praises the developer for prompt, patient and plain-language assistance.Read 21 Oct 2026 · apps.apple.com

Processing limitation

The Apple listing says processing is not live and results appear only after frequency analysis completes.Read 21 Oct 2026 · apps.apple.com

Rating on Apple App Store

3.6 out of 5 from 79 ratingsRead 21 Oct 2026 · apps.apple.com

Rating on Chrome-Stats

3.41 out of 5 from 600 ratingsRead 21 Oct 2026 · chrome-stats.com

Rating on Google Play

3.4 out of 5 from 600 reviewsRead 21 Oct 2026 · play.google.com

Sheet-music export

Transcriptions can be downloaded as PDF sheet music.Read 21 Oct 2026 · klang.io

Songbook

The Android app stores files in a personal songbook and synchronizes access with desktop use.Read 21 Oct 2026 · play.google.com

Supported devices

Sing2Notes is available in a browser and as Android and iOS mobile apps.Read 7 Oct 2026 · klang.io

Plans and prices

Every Sing2Notes plan and price →

Where Specifiction places it

• AI Hum-to-Song Generators#2 of 248.7
• Music Transcription Software#5 of 318.8
• Audio-to-MIDI converters#8 of 438.7
• AI Music Transcription Software#8 of 298.6