First let me say that i get the SVN builds from EmuCR.com.
i noticed there's music problems with the latest SVN builds. I almost always play Daytona USA 2 Power Edition, and i noticed the music output is of bad quality now, like too compressed! It wasn't the case with the older SVN builds. SVN 496 and 446 are doing that as well, even SVN 346!
SVN r280 is fine, the first to have music problems i found is SVN r303 (the website doesn't have builds between those 2)