This guy does a pretty good approximation of how I think Graff would sound, though he doesn't sing. The Dialog is, as always, NSFW.
https://www.youtube.com/watch?v=XuubTdzXSsE
https://www.youtube.com/watch?v=XuubTdzXSsE
I have a column/blog written from an IC perspective, be warned, it's probably a little bit too vulgar for RPC - https://graff-lacroix.tumblr.com/