Hi Bob,
If you don't mind spending a few extra bucks, a CD/media player made for DJs (aka a CDJ) only plays one track at a time, and most newer models can read songs from a USB stick or SD card.
These things'll have a lot of features you don't need, but they're built like tanks and very dependable. You can usually find used ones on Craigslist or eBay for a decent price.
You could also use a DJ app on an iOS device, rather than the default music app. That'll do one song at a time as well.
Cheers
Kent
PG Music
Last edited by Kent - PG Music; 03/01/18 02:20 PM.