Your friends button may need to be replaced,
but not easy to tell by forum.
Too frequently chordchanges is not alway any
good solution on autoaccompaniment keyboards.
You may try to reduse the amount of chords, and
things play just smooth, or better anyway, and
noone will notice if there are missing a eight
or quart or so
GJ
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Cheers 🥂
GJ
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"Success is not counted by how high you have climbed
but by how many you brought with you." (Wil Rose)