Not sure if I'm getting it right. This is how PeerTube notifies my about a playlist, but I don't see any link here in Hubzilla. That makes it a bad notification. And I don't see any notification in Mastodon at all.
Let's see what a boost of it from Hubzilla looks like in Mastodon.
4 Famous organ works by Bach
Four famous organ works by J.S. Bach (although we're not absolutely sure he actually wrote BWV565, by far the most famous piece of all): 1 Toccata & Fugue in D minor, BWV565 2 Fantasia & Fuge in G minor, BWV542 3 Passacaglia in C minor, BWV582 4 Wachet auf, ruft uns die Stimme, BWV645
QRator
