Welcome back!
"Trox17" sounds annoyingly familiar. Something Italian, I think. A bit hard to place, though, due to the short length. Got any info to narrow it down a bit, a date maybe?
"Masaz7" I definitely know, but I can't quite place it. I'll let you know when I find it.
"Treles1" is a cover of Domenico Modugno's "Nel blu dipinto di blu", and not a library cue.