lilyglyphs
Package to allow the use of notational elements in LaTeX documents
...Different from other approaches it is possible to use virtually anything that can be created with LilyPond. To use lilyglyphs it is not necessary to have LilyPond installed. But you will need it if you want to extend the predefined commands with your own.
A working Python installation isn't necessary either, but allows you to use some scripts that greatly simplify the creation of new commands.