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Sheet music library and viewer

Notarium

Notarium is a sheet music app for musicians: a library for PDF and image scores, a clean full-screen viewer, setlists, practice tools and a notation editor. Import files or scan printed pages with the camera, mark them up, build a program for the night, and write music of your own. Reading, practising and writing all work with the network switched off.

Android app Package: com.gante.notarium Developer listing: GI Gante
Open in Google Play Privacy policy Changelog

Notarium

One library for printed scores, chord sheets and the music you write yourself.
Library PDF, images, MusicXML, ChordPro and text in one place, with search by title, composer, genre and tags.
Viewer Full screen with one page, two pages side by side, vertical scroll or a half-page turn. Night mode for a dark stage.
Notation editor Write music from scratch, transpose by any interval, hear it played back, and export MusicXML, MIDI, PDF or PNG.
Scanner Scan printed sheet music straight into the library — edges and perspective are corrected automatically, up to 30 pages in one batch.
Plays with the network off On your device

Scores, markings and recordings are kept in the app's private storage on this device. Buying Notarium Pro and the scanner's first run go through Google Play; the rest works with the network off.

Everything in one file Back up the whole library — scores, markings and setlists — into a single file and restore it on another device. The app also shows how much space the library takes and clears derived caches.

Library and viewer

  • Imports PDF files, images, MusicXML (plain or compressed), ChordPro and text; printed pages can be scanned with the camera.
  • Searches across titles, composers, artists, genres and tags, and groups the library by composer, genre, collection or what you opened recently.
  • Collections and filters by genre, key and difficulty; a list or a cover grid, ratings, and an alphabetical index for large libraries.
  • Page modes: a single page, two pages side by side, vertical scroll and a half-page turn. Margins can be cropped so the music is larger on screen.
  • Bookmarks and link points jump straight to repeats and codas, night mode inverts the colors for a dark stage, and the last position in every song is remembered.
  • Pen, highlighter and text notes go directly on the page, on two layers with an eraser and undo. The original files are never changed — markings are stored separately.

Notation editor and chord sheets

  • Write music from scratch: notes, rests, accidentals, ties, dynamics and lyrics.
  • Select several notes at once and edit or transpose them in one step; the properties panel works on the selection.
  • Multiple voices and parts, with key, time signature and clef settings; transposition by any interval keeps the spelling correct.
  • Playback with a piano sound and a moving cursor — and any score in the library can be played back without opening the editor.
  • Imports MusicXML and exports MusicXML, MIDI, PDF and PNG. Engraving is powered by Verovio.
  • ChordPro and plain text files put the chords over the syllable you play them on. The whole sheet transposes by semitones with musically correct spelling, and text size, choruses and tab blocks are laid out properly.

Practice and performance

  • Setlists are built by drag and drop, and performance mode turns pages continuously through the whole program.
  • The metronome runs from 30 to 300 BPM with an accented downbeat and a visual beat indicator.
  • Recordings can be attached to a song, slowed down without changing the pitch, and looped between A and B for a tricky passage.
  • Rehearsal mode ties the click and the page to one tempo: you say how many bars a page holds, and the count-in, the metronome and the page turns all follow from it. A page can repeat instead of turning.
  • Light, dark or system theme, Material You colors, and an app interface in 44 languages.
  • Notarium is in beta; feedback at notarium@gi-gante.com goes straight into the next releases.

Privacy

  • Nothing to register. Scores, markings, setlists and recordings are kept in the app's private storage on your device.
  • The app's own code makes no network requests at all: no HTTP client, no sockets, no networking library, and no server on our side.
  • We add no analytics, advertising or crash reporting of our own. One Google component does report to Google: the ML Kit document scanner brings Google's data-transport library with diagnostics enabled. It tells Google how its scanner performs and carries nothing you scan.
  • The release build declares three permissions. INTERNET and ACCESS_NETWORK_STATE are merged in by that same Google data-transport component, not requested by Notarium; com.android.vending.BILLING is brought in by the Play Billing library so the purchase sheet can open. The app asks for no runtime permissions at all: no camera, microphone, location, contacts or storage.
  • Scanning uses the ML Kit Document Scanner from Google Play services: pages, edges and perspective are processed on the device, and the scans are saved only to your local library. Backup to Google Drive and phone-to-phone transfer are switched off in the manifest, so uninstalling removes all of the app's data.
  • From a purchase the app keeps two values on the device: whether Pro is on, and whether it came from the subscription or the one-time purchase. Google Play takes the payment; no card or billing details pass through the app.

Free, with an optional Pro

  • Free: the library, the viewer, annotations, setlists and performance mode, the metronome and audio player, rehearsal mode, the scanner, the notation editor, and export to MusicXML, MIDI, PDF and PNG.
  • Notarium Pro adds what goes on paper: PDF with a title page and printing margins, PNG at high resolution, a whole setlist as one file, plus stamps, shapes, custom palettes, extra annotation layers and exporting a page with your markings on it.
  • Pro is a monthly or yearly subscription, or a one-time purchase. Google Play takes the payment and holds it against the Google account that bought it.