I am a little confused as to what I can get as a Prime Member. Tonight, I said "Alexa, play the Moody Blues." It played Nights in White Satin and then just stopped. Likewise, I said "Alexa, play the Dave Clark 5 and it played Chiquita which was the B side of Bits and Pieces which I hadn't heard in 50 years. But, it didn't play anymore from the group. When I did ask to hear Billy Joel there were several songs available.