...and then there is zamzar.com. Download video as a mp3 and...listen
I can do that with mozilla firefox, and any of several add-ons. I was trying to BUY the song. Amazon & Walmart don’t have it. Just iTunes. The situation sucketh much! ;)
Worse yet, You Tube doesn’t recognize my login anymore, so at least for now, I can’t even post a note to the author asking him to get his wife’s song on someplace I can buy it.