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Published on Apr 13, 2011
see http://bouncemetronome.com The sound and visuals of the metronome are blanked out for two measures at a time and what you have to do is to see if you are still in time with it when it comes back in again.
Can set it to go silent for any number of measures and play for any number of measures alternating like that in a pattern of as many measures as you like.