I expect he can.
He is very accomplished. I remember seeing him play in the 70s/80's when he was a bit fitter and he played with four mallets.
I'd not be surprised to hear he has a Marimba as well as his xylophones at home.
(
Pasanonic 's been known to cause insanity in laboratory mice,
Fri 16 May 2008, 2:18,
archived)
Sir Patrick Moore
is worthy of all my respect.
I want to meet him, and listen to him play beautiful music all night.
(
Thinker,
Fri 16 May 2008, 2:23,
archived)