Here's a Tyros 4 vs Audya keyboard performance comparison of the song
"A Swinging Safari" composed by Bert Kaemfert.

Original
Performed by Bert Kaemfert (1962):


Performed by Manfred (Aug. 3, 2011)
on a Yamaha Tyros 4 & 3:


Performed by Snoopy (Aug. 4, 2011)
on a Ketron Audya 5: