How to get other instruments into Audacity?

Hallo,

I usually create records by my guitar. And I´d like to ask anybody to give me an advice how to get into Audacity sound of other instruments, for example drums or bass guitar? Respectively where I can find some source which contains any patterns with various sounds. (Of course I don´t mean real instruments.)

Thank you, Mziki.

You probably want a sequencer of some kind.
This is too broad a question - there are endless ways of doing it. It will probably be worthwhile for you to use Google and do a few searches on “computer music production” (and similar topics).