That would be the battery in the Metronome. Finally broke that sucker out again, and started out plucking at 40bpm. I always start out on the slowest setting, and I always get board with it, so I put the clicker on 80bpm and tried to play every other beat. That turned into a cluster [you know where I'm going with this right?]. I wanted to make a pocket to play, but I kept loosing count. Finally I just took it down to an easy to play 60bpm to cool off.