Soprano (formerly known as QRDF) is a library which provides a highly usable object-oriented C++/Qt4 framework for RDF data. It uses different RDF storage solutions as backends through a simple plugin system. Soprano is targetted at desktop applications
It is a set of php files allowing you to create the very music (no extra features yet like indent, colors etc) to copy paste it as input for lilypond. You can edit and add your buttons(no programming skills).