Been running this on my Nexus S for a bit now. I was on 11now I'm on 12. There is lag at times (press the center but only the blue circle appears no text). This could be because the Nexus has older hardware. Signature explains current Rom. Well done and really like the unique feeling of the player. Usually use Google Music but have added to the SD card now to use this app!
Sent from my Nexus S using xda premium
ROM: Slim Nightly 6.2
Kernel: Trinity TF133
Baseband Version: M9615A-CEFWMAZM-2.0.1700.54
Bootloader Version: MAKOZ10o
Build Number: JDQ39E
Recovery: TWRP 2.5.0