Donny,
I've heard music from a lot of the players in your link and have heard nice jazz/swing tunes from most of them.
One in particular that amazes me is Pasquelle Coviello. He has speed, technique and smoothness that is more common with the button (chromatic) players, but Pasquelle plays the piano accordion.
2 short song samples that display his range of capability can be heard in the following 20 - 30 second samples.
In the second sample, I was waiting for the sound of sonic boom
Pasquelle Coviello – Blue Moon Pasquelle Coviello – Virtuosissima
[This message has been edited by MrEd (edited 08-17-2006).]