Creating an audio app for Android requires you to use libraries written in Java. This curated list is aimed at helping developers (both new and established) discover the best tools for their project.
Music players or streaming
These libraries can help you make your next radio or streaming on-demand app.
Audio processing and synthesis
If you want to present music in a visual way, these libraries should do the trick.
Music Identification (aka tagging)
These libraries are for helping developers make some sort of Shazam inspired product. I also suggest looking at a few music API's to help match a specific song with the necessary metadata.