Super user friendly!! – m30 pendulum style free (musebook metronome) Review

I’ve been using it for 4 yrs now, but when I updated my iphones software to iOS 11 it doesn’t let me open the app. I hope they can deal with it because this app is, to me, the best metronome app available!!
Review by Luis R Feliciano on m30 pendulum style free (musebook metronome).