Schottische anyone?

This fellow is playing a somewhat unusual box. It looks like a club style accordion, with two treble rows and a few helper accidentals. The bass side on this instrument also appears to have helper buttons, something I've never seen before.


The video quality is poor in this next piece, but I love the tune, a Canadian tune called the Happy Boy Schottische.


Finally, this player does a nice job using a one-row box.


For anyone interested, here's a description of how to dance the schottische. Schottisches can be found in the folk music of many countries.