Spotify pays 0.003 per stream. Other legacy music platforms (apple music, pandora, etc) have their own payout structures. None of them pay very much. You're basically renting your content to them for fractions of pennies while they get filthy rich off of your PoW. Valueverse refers to tracks uploaded through an rss feed, more specifically the ones set up on an rss feed which allows boosting/zapping (aka podcasting 2.0). Generally, the valueverse embodies much of the FOSS ethics that we hold important in nostr and bitcoin.