This app is very simple and does exactly what you need it to do, which is to fix your internal sense of time. Practicing with a metronome is essential, but it becomes a crutch when the click never shuts off. Using this allows you to internalize your sense of time by automatically shutting off the sound of the click for a set duration.
You can use this solo, or with fellow musicians. One of my favorite drills as a bassist is to loop a groove with a drummer and then work together with this app to see how long we can maintain steady time without click. It is so satisfying when you groove for 15 bars, turn the corner, and hear the click come right back in on one.
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