SDR recording catch. 0618 sign on into music, Shazam claims "Love Song" by 311. Extremely weak, thanks to Chris Lobdell for pointing this one out to me, I might have missed it.
Off around 0624? Very difficult to tell for sure.
Update, I checked further back in the SDR recording, and had some music starting around 0504. So I suspect this was XLR8, as logged by jFarley.