I had a talk with my teacher about Beethoven the other day, and he said that Beethoven was REALLY anal. But if you trust him, And play EXACTLY as the score says, you'll be okay. That's why he's sooooo good. On the other hand, for second rate composers you need to help them out a little bit because a lot of times their markings just don't work. He also mentioned that Debussy and Stravinsky were REALLY anal composers and were geniuses like Beethoven because once again, if you trust them, and play EXACTLY as the score says, you'll be okay.
So this definitely got me thinking a bit.
So... Who are some other composers who were as anal as Beethoven?