Ability to store different identifiers for audio

[gorgobacka]

At the moment audfprint uses the filename/path as identifier for the songs.

It would be great to have an option to pass other values to audfprint. Maybe by an additional parameter.

I plan to use audfprint together with data from musicbrainz.org and would like to store those IDs for the ingested songs.

[liorazi]

@gorgobacka what kind of data did you think about using? like genre?

[gorgobacka]

Usually, I catalogue my music based on musicbrainz and each song has it's unique musicbrainz ID.