Ditto+ 60 minutes -- what's 60 minutes?

Is the 60 minutes referred to in the promo for the Ditto+ looper total, complete, all-on-board loop time, or is it the amount of loop time per numbered saved loop? I.e., there's 60 minutes per saved loop?

If it's 60 minutes total, that's great for a looper. If it's 60 per loop, well, that's even better. But 60 minutes total isn't that great for one of the uses, i.e. as a backing track player, because that might be 15 to 20 songs.