A parser for annotated MuseScore 3 files.

Assisted performance of music scores displayed in browsers

A simple ASCII format to represent music scores, and a music score editor

A program that helps you process scanned music score and manually delete fingerings.

a python application to manage digitised orchestral musical scores

Multiple public domain music scores typeset available in MusicXML

Source code / Musical scores for Beyond The Shadow

Extension for LilyPond to support SMuFL compliant fonts

Extension for LilyPond for the notation of microtonal music

Source code / Musical scores for Spring

My own arrangements of various music pieces for lute and guitar in modern notation and/or French tablatures. Licensed under a Creative Commons Attribution 4.0 International License.

Source code / Musical scores for Nageki Tsutsu

Source code / Musical scores for The Untouched Landscape

Create MusicXML files with PHP

Source code / Musical scores for Dormire

https://www.scribd.com/user/168181152/Rima-K/uploads

Web application for performing custom SVG-MIDI scores

Source code / Musical scores for The Brink of the Valley

Some of my custom fix for alphatab for use in ES6 modules. alphaTab is a cross platform music notation and guitar tablature rendering library.