You need to try Touch Pianist - it lets you play piano on your computer and you don't even have to know anything about playing the keyboard. Moonlight Sonata, schmoonlight sonata.
This amazingly simple piano gives you intuitive dots to indicate when you should press the keys. The best thing is, you only need to use one key to play.
There are loads of pieces to choose from, including Beethoven's Moonlight Sonata, Debussy's Clair de Lune, several Chopin works and a whole load of Bach too.
So whether you want to ape your favourite pianists with their idiosyncratic tempi, or blaze a trail with your super-charged version of Erik Satie's Gynopedies, then click the image below.