What was Richard Wagner's(german composer) contribution to music,opera ?

Also what was his contribution, innovation,what did he do different from Bach,Bethoven and Mozart.

What is his influence on music today like Ramstein and who else?

hint for your homework ... start with leit motif

gee is this a homework question or what?
If you had the time and energy to type this in, then you have the time and energy to do the research yourself. Not only Wikipedia, either.

Ironic that I've been stuggling all my life to search for somewhere where I can do high profile musical appreciation classes.

And you're trying to get yourself out of it.

Wagner?

You can't describe him in words.

Especially one who has little understanding of his operas.

Lemotif, yes, that's where I'd start with, and I'd state the difference of the technique in the completely new style of opera singing, different from the original Italian Bel Canto tradition. Being able to sing over the wide orchestra, and not focusing on agility, but strength.

Actually I'm not supposed to be helping you.

he was stupid. he was an antisemite.