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YesYes
You can get complete piano sheet music at most sheet music website such as sheetmusicplus
you could try the yahoo sheetmusic group called sheetmusicforall@yahoogroups.com
It is copyrighted so you would have to pay for the sheet music. There are web pages that sell sheet music for around three or four dollars per song on average.
http://www.sheetzbox.com/piano/sheets/10253/John_Denver-Perhaps_Love_FreePianoTabs.html
I've tried every over the last 20 years. No luck. I have written to John himself several times. He never responds.
There are a great many sites that have sheet music for Elton John's Rocket Man. Sites such as Music Notes, Pianotte, Online Sheet Music and Amazon all have the sheet music available.
http://img24.imageshack.us/img24/6923/littledorrit.jpg This is the link to the music sheet that someone transcribed. It's for free and is the only sheet music that you can find at the moment for the Little Dorrit theme song. The composer of the music from Little Dorrit is John Lunn and i don't know if he will ever publish the sheet music for Little Dorrit, so this is probably the closest that we can get for the time being. :)
On the internet
John Cage
Herbert Henry John Murrill has written: 'Dance on Portuguese folk tunes' -- subject(s): Folk music, Portuguese, Piano music (2 pianos), Portuguese Folk music 'Capriccio, for violoncello & piano' -- subject(s): Violoncello and piano music
I know that John Cage wrote music for prepared piano as well as Arvo Part and George Crumb. Henry Cowell wrote music using clusters as well as some string play.