Startingstopping metronome via earbud playpause button

I would love to be able to hit the button on my earbud to start and stop the metronome. I use a jabra earbud with another metronome app.

I think this is a good suggestion and I added it to our engineers to-do.

Changed the title from "Starting/stopping metronome via earbud play/pause button" to "Startingstopping metronome via earbud playpause button"