The iOS 9 updates for the two-row Hohner Melodeon apps for the iPad in the keys of B/C, C#/D, D/G, G/C, and C/F are now available to current owners of the apps as free downloads on the iTunes App Store. These new versions also improve the sound quality on iOS 7 and 8.
I’ve also submitted iOS 9 updates for the three-row 31-button Hohner SqueezeBox iPad apps in GCF, FBbEb, ADG, EAD, and BbEbAb, the 34-button Xtreme SqueezeBox apps in GCF, FBbEb, and EAD, as well as the Cajun IV. They should be available around October 7. They also have sound quality improvements for iOS 7 and 8.