You can access the DeMu library of music via many apps like lnbeats, podcastguru, truefans, curiocaster, podverse, and fountain.
Music podcast shows will curate music for you. Accounts like @npub1zm95...092t @Aaron of Essex @The ₿udtender @npub1ztzp...7zxv will often post notifications on nostr about new DeMu being uploaded throughout the week.