He might have made this pie chart himself
But the two he's posted here are, at the very best, versions of ones that are already older than the internet.
www.b3ta.com/challenge/graphs/
( ,
Thu 24 Dec 2009, 14:02,
archived)
www.b3ta.com/challenge/graphs/
I think it's safe to say that any and all graphs that represent music or musicians in any way are already done a thousand times
( ,
Thu 24 Dec 2009, 14:12,
archived)