Olympia has a music scene. That's right. There's shows at bars and at houses. There's an all-ages venue, Northern, which is volunteer-run and located downtown.
Looking for Olympia-based bands? Check the bands page. There are also pages for DJs, venues, and promoters.
On bandcamp.com you can navigate to bandcamp.com/tag/olympia and get a sense of popular local music that's hosted on the site.