Akai APC mini mk2 User Manual page 14

When any parameter is changed, the Clip Buttons will display an animation to
confirm the selected choice.
Use the top two rows of Clip Buttons to change the desired root note of the scale.
When pressed, the new selection will light green. Press and hold a root note button
to see the name of the currently selected scale displayed in the matrix. For instance,
if C is selected, the matrix would appear like the following:
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