I would suggest changing the subject of 'crucible' to a more broader 'gaming'. This allows people of any kind of game to share and partake in the conversation and appreciation of music. As for the topic: The only music I like to listen to while playing Destiny's multiplayer is the sound of everyone eating my dust on the scoreboard (and Zoltoyde complaining about how no one else is a Gentleman and Scholar running Snipers)