How to receive custom button actions on Tasker

The action of intent sent to Tasker is made by com.mc.miband.buttonMusic.action + ACTION INDEX
ACTION INDEX is the number of the Tasker action in the button list (zero based)

See below example, the Tasker actions are the third and 6th on the list
So the intent for the #3 Tasker action is com.mc.miband.buttonMusic.action2
and the intent for the #6 Tasker action is com.mc.miband.buttonMusic.action5

How to receive an intent on Tasker:

Intent names on screenshots are just examples, use the proper com.mc.miband.buttonMusic.actionX intent shown on app info