My friend bought a MPC2500 and he is having troubles trying to set the tempo of loops before putting the loop into an order. It would be very helpful if someone out there can give some suggestions regarding this issue. I was also looking into this matter because I wanted to help him, so one day I was browsing and I found something similar where somebody used a MPC 2000XL and there was a function through which you are permitted to loop a beat, then the MPC200xl will also show you the beat of the loop.
Also note it that he wasn’t time stretch it not to change the pitch. He just wanted to find out the beat of a loop or break once you have set the start and end points properly. Maybe the same could work for MPC2500. You have also this option to find the beat of a loop by putting the loop to a pad in the program page and then discontinuing and opening the machine on your own till the sample fits according to the beat. You can also know about it by trying the tap the button for finding a tempo. I also tapped the tempo on this tool (https://getsongbpm.com/tools/tap-tempo) to verify the exact bpm of the track. Going back to the sample, you are supposed to play the sample and press the tap tempo. By doing this you would be able to get a bit idea of setting the tempo. Also make it sure that your TRIM MODE has an unbroken loop.