Here's another idea:

At the upper right corner of the Mudcat page there's a box that says ":Lyrics and Knowledge Search." the bottom half of the box says "DT Lyrics,"

Clear as mud, ain't it? Well, DT stands for 'Digital Tradition', and the Digital Tradition is a collection of thousands of songs, many of its entries providing lyrics and music. I suggest you take one letter of the alphasbet a day and scan for songs that you know or that intrigue you.

It doesn't matter that your voice is high. If a song is too low, you just change the key. If you want help with that, get back to us.

Good luck!