MuseScore is a score writer which allows musicians to digitally compose written sheet music. IT is completely free and is used worldwide by everyone from hobbyists to professional composers, engravers, etc. Of note to the blind/low vision community, MuseScore developers take considerable interest in ensuring accessibility, Music Braille access, and other such items of interest and necessity to us. Given this, MuseScore is also used by a growing number of blind and low vision musicians. You can find more info about MuseScore at the following links:
https://musescore.org/en/accessibility