a Sad Waltz and a Theremin

"Pay no attention to what critics say. No statue has ever been put up to a critic."
Jean Sibelius (composer of Valse Triste in 1903)

performed in 2006 by the German Chamber Orchestra of Bremen:


and staying on the classical tip, here's a beautiful Rachmaninov piece (Vocalise, 1912) performed on THEREMIN. you have to see it.