I played bass for Tennis System for their Part Time Punks Session.
It's being released by PaperCup Music. I think it came out great and had a lot of fun playing on these songs.
You can pick up a physical copy on PaperCup Music HERE. This is a limited pressing of only 500 LP's and the first 100 are a special edition translucent blue.
You can find more info on Tennis System HERE