The term "classical music" did not appear until the early 19th century, in an attempt to "canonize" the period from Johann Sebastian Bach to Beethoven as a golden age. The earliest reference to "classical music" recorded by the Oxford English Dictionary is from about 1836.
That is from Wiki.
---------- Post added 2011-11-07 at 10:04 PM ----------
Awesome choices, love Rachmaninoff and Liszt, particularly Totentanz.