ScoreTransposerOnline PDF Score Converter
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Target key, semitones, and instrument parts

Transpose sheet music online

Create new score revisions by semitone count, target key, or common transposing-instrument profile, with optional range diagnostics after transposition.

First pass

Current transposition is model-based and first-pass; per-part clef rewriting and automatic comfort-key suggestions are planned next.

Open score projectsPricing

Platform modules

Built on MusicXML and Score JSON

Each feature page maps back to the same score project model rather than a separate one-off converter.

Module

Score JSON transposition

Connected to the score project workflow.

Module

Target-key mode

Connected to the score project workflow.

Module

Instrument profiles

Connected to the score project workflow.

Module

Range diagnostics

Connected to the score project workflow.

Workflow

How this path works

The public page leads into the authenticated app workflow when users are ready to process a score.

01

Open a score project

Use any project with a current Score JSON revision created from MusicXML, OMR, Jianpu, MIDI, or Score JSON import.

02

Choose the transposition mode

Move by semitones, choose a target key, or create a written part for Bb, A, Eb, or F instruments.

03

Check the resulting range

Optional voice and instrument range profiles report low/high notes and write warnings into the new revision.

Product detail

What to expect

Revision-based workflow

Every transposition creates a new version instead of mutating the previous score, so teachers and arrangers can compare results.

Exports regenerate from the model

Jianpu, MusicXML, MIDI, rendered PDF/images, and practice audio can be generated again from the transposed revision.