Oh Sheet

- YouTube URL support — Paste a YouTube link, Oh Sheet downloads the audio and transcribes it automatically - AI transcription — Spotify's Basic Pitch detects notes from audio; optional Demucs stem separation isolates instruments first - Two-hand piano arrangement — Melody goes to right hand, bass + harmony to left hand, with intelligent voice assignment - Humanized playback — Micro-timing, velocity dynamics, pedal marks, and articulations make it sound natural - Publication-quality engraving — Default backend is in-process music21 → MusicXML + LilyPond → PDF; falls through to the oh-sheet-ml-pipeline HTTP service when LilyPond is missing or the local stack errors. See Engraver service - Interactive viewer — OSMD renders notation in the browser with Tone.js playback and cursor sync - Custom piano roll — Canvas-based visualization with color-coded hands, Y-axis note labels, and tempo-synced beat grid - Real-time progress — WebSocket events stream pipeline status with kawaii mascot animations per stage - TuneChat integration — Push results to TuneChat rooms for collaborative practice Open the app, paste a YouTube URL, and hit Let's go! The engrave stage has two backends, controlled by OHSHEET_ENGRAVE_BACKEND: Oh Sheet is the open-source project Oh-Sheet-Team/oh-sheet (https://github.com/Oh-Sheet-Team/oh-sheet) by Oh-Sheet-Team, released under MIT. Ion packages it unmodified from commit 746ffe9aacb8, adding only a manifest, an icon and a start script.

Written by Oh-Sheet-Team, published to Oikou by Ben Grande.

• ★ 366 stars on GitHub
• Licence: MIT
• Built from commit 746ffe9aacb8

View the repository on GitHub

Not rated. Nobody has said who this app is suitable for, so Personal Clouds and the Oikou app treat it as 18+.

Internet

It asks to reach these hosts, and no others:

• fonts.googleapis.com
• cdn.jsdelivr.net
• fonts.gstatic.com

Personal Cloud tools

• Run a Redis server of its own on your Personal Cloud (for its task queue and cache) ion.redis

Notifications

It does not send push notifications.

Storage

Up to 1 GB on your Personal Cloud.

Its address

Works best with its own address. A Personal Cloud shared through Cloudflare can give it one; on a private Personal Cloud on Tailscale it opens under your Personal Cloud’s address, where it may not work fully. Private and shared Personal Clouds

Sign in to add this web app to a Personal Cloud of yours. It runs there, on your own computer, and you open it from there; nothing is installed on your phone.

Sign in to add