Flat: Sheet Music Editor

Flat is a professional music notation app for composers, arrangers, and band directors. Write, edit, and play back scores for any instrumentation (orchestral, chamber, choral, jazz, marching band, or mixed ensemble) on your Mac, and keep your full library in sync across your desktop, browser, and mobile devices.

COMPOSE ON YOUR DEVICE. SYNC WITH FLAT POWER.

Write and edit your scores locally, save them to your device, and export when you're ready. With Flat Power (premium), your scores automatically sync so your full library stays connected across all your devices. You can use your subscription with your Flat account on your iPhone, iPad and your web browser.

BETTER AUDIO PLAYBACK ON DESKTOP

The Mac app includes higher-quality soundfonts for free instruments, so playback sounds closer to a real ensemble compared to the browser version. Flat Power subscribers can go further with premium instrument libraries and per-part volume and reverb controls.

NOTATION FEATURES

Flat covers everything you need to go from a blank page to a finished, print-ready score:

- Note input via mouse, keyboard, touch piano, guitar fretboard, or drum pads

- A wide range of instruments including piano, guitar, strings, winds, brass, percussion, and voice

- Full articulation, dynamics, and expression markings

- Transposing score and individual parts view

- Chord diagrams, guitar tabs, and drum notation

- Lyrics and text annotations

- Autocompletion when adding chords

- Transposition by key, interval, or semitone

- MIDI input via USB and Bluetooth devices

- Import MusicXML, MIDI, and PDF files

- Export in PDF, MP3, and WAV

FREE VERSION

Full desktop notation app included at no cost. No account required, all your data stays on your device. All core notation features listed above are included in our free version.

FLAT POWER: $9.99/month or $49.99/year

Unlock advanced tools, collaboration, and seamless sync across all your devices.

Flat Power includes everything in the free plan, plus:

- Store and sync your scores in your Flat Cloud account across desktop, browser, and mobile

- Full version history: view and restore any previous version of your score

- Export in MusicXML, MIDI, and PDF without Flat branding

- Real-time collaboration with other Flat users

- Inline comments for feedback on shared scores

- Custom note heads: Boomwhackers colors, Note Names, Shape-Note (Aiken)

- Advanced notation: customizable beaming patterns, swing, multi-measure rest, figured bass, and more.

- Customizable keyboard shortcuts

- 180+ instruments including the full HQ instrument library

- Premium soundfonts and instrument add-ons

- Advanced export: individual parts, automatic multi-rest print, no Flat branding

- Layout and style controls: page dimensions, Jazz and Handwritten fonts, element spacing

- Advanced audio settings

- Priority Support

No account required to get started. Sign in with your Flat Power account to sync your library. Existing Flat Power subscribers get desktop access included at no extra cost.

Payment for Flat Power will be charged to your Apple ID at confirmation of purchase. Subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage your subscription in App Store account settings.

Our Terms of Service and Privacy Policy are available at https://help.flat.io/en/policies/

Questions or feedback: [email protected]