Patent number 5,579,430 does not read like a manifesto for a new music business, but its grant to Germany's Fraunhofer Institute on November 26, 1996, marked ...

Use "Audio Steganography for Pretty Good Concealment" to compress, encrypt, and hide small files of any type inside compressed audio files (e.g. MP3, FLAC, OGG) or inside uncompressed .WAV files.

A repository including my 2-part project, working on updating metadata in mp3 music files, using beets media library management and a custom-made Spotify Tag Fetcher.