I've been hearing new songs on the HD LF's while on the standard they're not playing them yet. I just heard "11, 12, 13" by David Holmes. This has got to be the start of the the incorporation of the new playlist. The two songs that I heard are very good, in my opinion. Good contemporary music, I mean. I was not able to identify the one at 5:48 CST, though, and a Linkin' Park song aired on both the HD and standard-definition at 5:58.
I think this is my first topic started...haha. I hope this isn't all just a false alarm but I'm pretty sure I'm hearing the start of a new playlist.