*streaks in this topic too... and stops and dresses up*
You know, when you asked that question, I popped in the cd and listened to it... I'll admit that it wasn't that easy, I thought the first lead was Friedman's due to those first notes that are a total Marty thing to do... But near the end, it sounded really like Gus, and had more of his sound than Marty's.
After listening to it a bunch of times, I think Marty's lead kicks in at 3:10, I dunno what effect it is but I'm pretty sure it's him. He's got a really unique phrasing...