so i don't have a career or anything, so i thought, well, you know, if i learn to play the harmonica,even as a street musician, if i'm sober. i think i'll do okay. ♪ i started to play the harp better when i lost this tooth. i started getting the twanging sound the way it was supposed to sound. i was never so happy to lose a tooth. makes this harp sound real good. ♪ you can play what you feel without reading music, and i've tried to play guitar, piano, all kinds of stuff, and i never went anywhere, and not that i'm going anywhere with this, but, i know a few songs, mostly hymnals, gospel songs, and a few of my own, and it just expresses me. >> lopez was serving a 20-year sentence on 27 counts of burglary. but it was his exposure to inmates serving life terms that inspired him to pay them tribute through his songs. >> i just wanted to do something for the lifers to kind of express them. i could sing the last verse and it speaks for itself. goes -- ♪ ain't done no wrong since the days of old ♪ ♪ out in california ain't no other road ♪ ♪ when i'm carried away in the cold ♪ ♪ someone tell