Darkover has had significant SCA crossover for a couple decades. It's not an SCA event (you'll note that all the dancing is post-period), but there is some commonality of interest.
Darkover is also much more of a music con than most other "generic" (that is, not officially music) cons. Glenn's celeidh band often plays, and my group plays a mix of folk and renaissance (and a little filk), and Cliff Art is this sort-of-jazz-kinda group, and there's an instrumental jam, and sometimes sacred-harp singing, and the midnight Hallelujah Chorus, and...
Darkover is also much more of a music con than most other "generic" (that is, not officially music) cons. Glenn's celeidh band often plays, and my group plays a mix of folk and renaissance (and a little filk), and Cliff Art is this sort-of-jazz-kinda group, and there's an instrumental jam, and sometimes sacred-harp singing, and the midnight Hallelujah Chorus, and...
Yeah, it's an unusual con.