It looks like it should be working but nothing shows up on any device I play the tracks on.
Any help would be greatly appreciated!
There are so many threads in this forum - see e.g. here
and try the search function.
A good idea would also be to follow
These are wav files, most players see limited or no metadata with them. As a test, try converting to any other lossless format (FLAC or ALAC) and see what happens then.