Developers answered 1 of 3 email queries, despite me being a paid customer. Unlike itunes crossfade, this does allow one to jump from anywhere in one song to another, or even within, with a nice crossfade. It kills the equalizer though... and if BMPer is used & song start & stop times are adjusted to reduce lead ins & outs, these apparently cannot be easily 'reversed' without manually unchecking the buttons for optional start/stop times for each song. (Don't do this to a large play list! You will regret it). If the designers cared more about their paying customers I'd rate this higher. I recommend the freeware Mixxx instead.