Wrong notes/keys from midi keyboard using MK-149 Evolution and usb-midi adapter

A
Alienware posted Dec 2, 23:06:

Hi,
Got a problem where aseqdump shows the first five keys as 36 to 42, then jumps up to 109.
From there it continues up to 127 and then goes haywire.

I'm using a raspPi 2 playing with grandpiano sounds.

Any suggestions where I should start looking for the problem?

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