How it works
Adagietto tempo sits between two words. Wikipedia's list of tempo markings defines it as slower than andante or slightly faster than adagio and gives it 46 to 80 beats a minute, warning that such figures are very rough.
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Start
Tap the pad, or press Space, for a level click at 66. Tap it again and the click stops.
Change the tempo
Tap the number under the pad to type a whole tempo, or use minus and plus. Three presses either way reach 63 and 69. With 66 they are neighbouring notches of the wind-up scale that Wikipedia's Metronome article calls the most common.
Questions and answers
How does adagietto differ from adagio?
Only a little. Wikipedia's list of tempo markings starts Adagietto at 46, two beats after Adagio's 44, and ends it at 80, fourteen past Adagio's 66. Its glossary of music terminology says fairly slowly, but faster than adagio; Wiktionary calls the word adagio's diminutive.
Which metronome dials print the word adagietto?
Only one of three pictured in German Wikipedia's Tempo article: a present-day Japanese dial, over 63 to 69, between Larghetto and Andante. The older German and French dials have none. Six beats where the list allows thirty-four; the article calls every band approximate.
Has adagietto always meant the same speed?
No. Wikipedia's Tempo article warns that many of these words have shifted in sense over time. Its example is Allegretto, once just above andante and now just under allegro; a similar fate, it says, has befallen Adagietto, though it does not say in which direction.
Does the title Adagietto set a movement's tempo?
Not by itself. The Adagietto of Mahler's Fifth Symphony, its fourth movement, carries the word as a title and the instruction Sehr langsam, very slowly, in Wikipedia's article on the symphony. Wiktionary gives adagietto another sense: a short adagio movement.
Why can't I hear the metronome?
Watch the pad first. Two dots trading places mean the 66 is running and only the sound is missing, which on a phone points to the ring switch, the volume or a Bluetooth speaker. Dots that stay still mean the pad wants another tap.