Altogether Music Catalog

Altogether — Your entire sheet music library, beautifully organized.
Altogether keeps every piece and book you play in one tidy, searchable place — sorted by the instrument it belongs to. Whether you're a pianist with a wall of binders or a multi-instrumentalist juggling repertoire, your whole collection lives at your fingertips.
Organize by instrument Your library is grouped by instrument — Piano, Guitar, and any custom instruments you add. Each instrument shows its own count, so you always know how much repertoire you're carrying.
Singles and books Catalog standalone pieces or whole books. Books hold a full list of tunes, so collections, fake books, and method books stay intact instead of scattered.
Rich detail for every entry Track the essentials for each piece — player, composer, arranger, key, tune list, and your own freeform notes. Everything you'd scribble on a title page, now structured and searchable.
Snap and Attach a photo of the title page. Photos are automatically cropped to a clean A4 portrait.
Backup and sync Export your entire library — photos included — to a single file you can save or share. Or sign in with Apple or Google to sync automatically across all your devices, so your collection follows you everywhere.
Private by default Your library lives on your device. Cloud sync is entirely optional and only kicks in when you sign in.
And coming at a later date -
On Mac, too A native macOS companion gives you the same library on the desktop, with drag-and-drop, paste-to-add, and keyboard shortcuts for fast cataloging.