How it works
An allegro vivace metronome is set from 124 to 156 beats a minute by Wikipedia's list of common tempo markings. The list reads the words as an allegro at least a little quicker and livelier, yet never quicker than vivace.
Read the full guide
Start
Tap the pad, or press Space, and the click begins at 139. Tap or press again and it stops.
Change the tempo
Tap the number under the pad and type a whole tempo, or step up and down with plus and minus. On the wind-up scale that Wikipedia's Metronome article calls the most common, neither end of this range is a notch: the first setting inside it is 126 and the last 152.
Questions and answers
What is the allegro vivace metronome speed in beats a minute?
Anywhere from 124 to 156, by Wikipedia's list of common tempo markings. The list is careful to add that a word alone never fixes a metronome figure: its numbers are very rough, fit 4/4 time and shift widely between composers and works.
Is allegro vivace faster than allegro?
Slightly, and by the list's figures only at the slow end. Allegro, fast and bright, opens at 120 and Allegro vivace at 124; both close at 156. This page's range is allegro's with 120 to 123 left off.
Is molto allegro the same as allegro vivace?
On a metronome, yes: the list prints Molto allegro and Allegro vivace as one entry with one range, 124 to 156. It glosses molto as very and vivace as lively and fast, so the two names reach the same figures by different words.
Does an allegro vivace in a score stay between 124 and 156?
Not always. Wikipedia's article on Beethoven's Eighth Symphony gives the finale, an Allegro vivace in 2/2, the composer's own mark of whole note = 84. By our sum that is 168 half notes or 336 quarter notes a minute: over the range either way.
Why can't I hear the metronome?
On a phone the usual causes are the ring switch, a volume set to nothing, or Bluetooth sending the click to a speaker or earphones. Sound or not, the pad's two dots take turns on every beat, so the tempo can be read by eye.