Lilypond

LilyPond is a free, open-source music engraving program that generates high-quality sheet music from text-based input, allowing users to create professional-looking scores with precise control over layout and notation. As a powerful tool for musicologists, composers, and typesetters, LilyPond is particularly relevant to the tech community for its innovative application of text-based markup languages and its potential for automating music notation tasks, making it a valuable resource for researchers and developers working on music-related projects.