The latest update includes music from The Cynic Project, I think you'll appreciate the soft tones to the more upbeat tracks on later levels.
For more music by The Cynic Project have a look at
http://www.cynicmusic.com/
As well as music from the cynic project, there has recently been additions such as teleporters which improve level navigation and lots of small tweaks such as player controls.
As usual any bugs found let me know and I'll look at them asap
I hope you enjoy the update!