Have you considered a laptop computer instead of an mp3 player.?

I use one to gig with, I can go from song to song instantly if I want, decide what song to play at the very last second (no playlist needed), and have immediate controls over all the functions.

If I'm doing a fast song, and had a slow song planned next, but change my mind because I think they want another fast one, two or three key presses sets the song up. When the current song ends, I hit Enter and the next one starts immediately.

Full description of how I use it is here https://www.nortonmusic.com/backing_tracks.html

It may be more than you need, but it's worth checking out, anyway

Notes ♫


Bob "Notes" Norton smile Norton Music
https://www.nortonmusic.com

100% MIDI Super-Styles recorded by live, pro, studio musicians for a live groove
& Fake Disks for MIDI and/or RealTracks