Countdown Metronome

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Countdown metronome lets you set a countdown timer to keep a metronome, with beats per minute(bpm) that you set, clicking during the timer countdown. There is a 30 second warning on the timer that is on by default, but can be disabled.
There is also a 10 second countdown that at the end of the timer that can also be disabled.
The default settings are: *A 2 minute countdown *110 Beats per minute *30 second warning *10 second countdown to zero
These default settings were selected to assist with the high performance cpr process. High performance CPR is normally done at a rate of 110 beats per minute, and a defibrillator should begin to charge at the 30 second mark. To see a demonstration of high performance cpr visit https://www.youtube.com/watch?v=H0G17sH4NvY