I\'d like to produce sounds that would resemble audio from real instruments. The problem is that I have very little clue how to get that.
What I know this far from real
As other people said, not a trivial topic at all. There are challenges both at the programming side of things (especially if you care about low-latency) and the synthesis part. A goldmine for sound synthesis is the page by Julius O. Smith. There is a lot of techniques for synthesis http://ccrma-www.stanford.edu/~jos/.