From Erik Knelton, the percussionist in the recording:

Listen through ear buds. the handpan. In the first section we had my good old friend lay down the keyboard part in the beginning last May. He died 4 weeks later. I think it was Rocco's last recording. His songs were performed by Bruce Springsteen and Christina Aguilara. He was a founding member of Philly band The A's.

Apocalypse is now available on Spotify.