Audiomack (https://audiomack.com/) is a music streaming service. It has been around for a decade.

Artist:

• https://audiomack.com/hdi-mc
• https://audiomack.com/key-glock

Release:

• https://audiomack.com/hdi-mc/album/best-of-2008-2016-1
• https://audiomack.com/hdi-mc/song/balle-perdue-prod-by-jonesph2n
• https://audiomack.com/key-glock/album/yellow-tape-2-deluxe
• https://audiomack.com/key-glock/song/pain-killers
• https://audiomack.com/key-glock/song/pain-killers-clean

Recording:

• https://audiomack.com/key-glock/song/grammys

Apparently there is no concept of a single. Anything with more than 1 track seems an album and singles appear as "song". If they are contained on an album they might or might not link to it.

Playlists URLs should probably be rejected:

• https://audiomack.com/joevango/playlist/verified-hh