im a drummer and a lot of the time in practice i go from slow to fast and back to slow..
what if there was a way to make the bpm increase/decrease to a certain bpm in a given amount of time...
example go from 50 bpm to 150 bpm in 5 minutes hold 150 bpm for 1 minute and come back down to 50 bpm in the next 5 minutes...
you could have boxes that you put in the bpm... inbetween the bpm boxes you put the time to reach the next bpm... and maybe a way to say if you want to hold a time for a certain amount of time..
for me this would be one of the best things ever invented let alone be extremely practical for any drummer in the world!!!