I can't give you a full description, because I am not an expert on that...But I'll tell you what I hear in their music as their philosophy of life. With Regards to Beethoven, his music has what I call a malevolent universe...It is the view that has been called Byronic...it is the belief that man must struggle even though he has no chance of winning, and that he must perish heroically...and that is what I hear in practically everything Beethoven has ever written.
This is interesting in light of the recent web chatter on the matter (see my previous posts for more info), especially the "Julie" anecdote as told by Ellen Stuttle, where "Julie" sends Rand a selection of Beethoven. I, like others, wondered exactly what Rand had heard, and here, Rand is almost saying that she's heard "everything he's ever written." If I am reading this correctly, this suggests that Rand didn't just listen to the Fifth, with its "fate knocking at the door" motif, and she must certainly be familiar with the "Eroica" and the "Ode to Joy."
Incidentally, Rand says of Wagner that he was "malevolently" pretentious, all trimmings and motifs with "nothing to say" (OUCH! Beethoven got off easy!). On Rachmaninov, she says his is a "tragic benevolence," where life is a struggle, but a struggle that CAN be won."