Tab Tempo โ Tap to know BPM: When the user clicks a button in the toolbar or presses a shortcut, the addon opens a popup with a โTapโ button. The user taps the tempo (click or spacebar) โ the utility calculates the average BPM (beats per minute). Can play corresponding metronome background music. Technology: popup.js + Date.now() to measure the time interval between taps.
