There is no shortage of information about making websites accessible - just using ALT tags for every image, providing HTML text links as an alternative to Javascript mouseovers, and providing alternate MP3 links for music currrently provided as Flash video would solve a lot of the Sing Out! site's problems.

None of that costs anything. A freeware text editor and knowing what you're doing.

What I suspect may have happened: they used a website creation package which doesn't encourage looking at, evaluating and modifying the source you produce. (The homepage source references something called AllWebMenus, which I've never heard of).