Dual-sided Hayden-style Duet Concertina for the iPhone/iPod Touch (2nd generation):
Main screen:
Normal layout (symmetric):
Alternate layout (inverted, matches Boney's recommendation):
Settings (touch the 'i' icon):
App website:
http://www.tradlessons.com/Duettina.html
Now available on the iTunes App Store:
http://itunes.apple.com/us/app/duettina ... 50305?mt=8
CP: Duettina
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