The discontinuity means a value of 0.5 can never be generated. Applying this mapping over a period of between 0.5 and 1.5 seconds will give us our almost, but never quite, 1 Hz metronome." Devilish.

Be it a wind-up device or an app on your phone, a metronome is part and parcel of being a focused musician. Simply put, it keeps time at whatever tempo you set it to and then you interact with the ...