MusicBrainz is a user-maintained community music metadatabase...artist names, release titles, tracklist...Its web site is the interface which allows the creation and maintenance of the data, all user-contributed and user-maintained. This means that if you
Songpull: a gathering in homes, garages, barns, small venues; participants take turns "pulling" the guitar (or drum?) from one another, and one by one, all perform their songs for the group...Can say, "songs written in within 30 days," etc.