Can't remember the name/composer of this well-known classical tune

Question

I try to find this tune but can't remember the name. Can anyone help? It goes like E5 D5 E5 C5 E5 B4 E5 A4 E5. I also tried to play this on virtual piano which I think might help.

Answer 1

It's probably the start of the Fugue part of Johann Sebastian Bach's Toccata and Fugue in D minor. Here is a YouTube link.

Here is some sheet music, the part you're looking for starts halfway measure 30 and it begins on an A instead of an E.