I didn't see quickly-glanced if I or anyone else has reported this problem before, but at least in the latest qSpot there is an occasionally-triggered glitch where the song currently playing starts to play as two instances. One of them plays the "current" part of the song and the second instance can be heard playing the music from something like five seconds earlier. Pressing the pause button will first cut one instance and after a couple of seconds the second instance. Weird.