Normal heart beat, speeding up, fast, slowing down, then stopping.
All files can be combined (“tempos” are matched)
Files:
01.heartbeat normal: 0:10.000
02.heartbeat speed up: 0:04.500
03.heartbeat fast: 0:04.371
04.heartbeat slow down: 0:05.061
05.heartbeat stop: 0:12.719