What piece of music can you play over & over?


I had discovered a new opera a few years back that I can't believe I played over and over for six weeks straight without changing the disk once.
I believe this means the composer was a genius, who else but Mozart can do this, and the opera was Abduction from the Seraglio.
Have any goners found themselves in the same situation.
pedrillo
Billy Cobham "Warning" for reference of instruments and Jennifer Warnes "Famous Blue Raincoat" for vocals and instruments. I have refered to these often over the years.
Paul Kelly, "Post" and "May, 1992"
The Clash, "London Calling"
Neil Young, "On the Beach" and "Ragged Glory"
Chris Isaak, "Baja Sessions"
Rolling Stones, "It's Only Rock and Roll"
The Faces, "Five Men walk up to the Bar"
Joni Mitchell, "Hits" and "Misses"
Beat Farmers' "Tales of the New West"
Just out of curiousity has anyone gone the lenght with the music they recommended. Let's say 8 hours of the same cd or song whatever was submitted in. I say this because on paper some music sounds good, but if you were to hear let's say the song "I wanna hold your hand" for eight hours I think it would eventually wear on the listener,no.
Personally I think it is easier to do with classical than with other styles, I'm sure i'm going to hear retaliation for that one,JMHO.