App switcher behavior
In an iPad without home button, when trying to active the app switcher by sliding up from the bottom edge, while having Drambo's pad or key view open results in pads/keys being triggered.
With the pad/key view closed, which puts the bar selector or scene crossfader at the bottom, there are no "extraneous" inputs (e.g. a specific bar is not selected)
This seems inconsistent to me, and the pads/keys behavior can lead to hung notes after switching the app. I'm not sure if this is really an issue though; I can imagine there's a trade-off between optimizing for app switching and note playing which led to this as a deliberate decision.