How it works
Metronome 58 BPM lands where two slow words change hands. German Wikipedia's Tempo article pictures a 21st-century Japanese metronome whose dial prints Adagio from 54 to 58 and Larghetto from 58 to 63. It calls such bands only approximately placed.
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Start
Tap the pad, or press Space. Clicks at 58 are all alike and two equal dots take turns, so the pad marks no bar. A second tap stops them.
Change the tempo
Tap the number under the pad to type a tempo, or press minus and plus. On the wind-up scale Wikipedia's Metronome article lists as the most common, 58 is a notch, between 56 and 60. Double time is 116, which has a page here.
Questions and answers
Is 58 BPM adagio or larghetto?
Either, in Wikipedia's list of tempo markings, which gives both words 44 to 66. Largo (40 to 66), Lento (40 to 60), Adagietto (46 to 80) and Andante (56 to 108) take in 58 too. The list calls its figures very rough approximations for 4/4.
What do older metronome dials call 58?
Largo. German Wikipedia's Tempo article pictures a 20th-century German dial with Largo over 40 to 60 and a 19th-century French one with Largo over 42 to 70. Its present-day Japanese dial fits four words, Grave to Adagio, inside that German Largo.
Is 58 BPM slower than one beat a second?
Slightly: 0.97 beats a second, by our division. Splitting the beat ourselves, an eighth note lasts 517.2 ms, one note of an eighth-note triplet 344.8 ms, a sixteenth 258.6 ms and a dotted eighth 775.9 ms.
Why can't I hear the metronome?
With clicks just over a second apart, wait for the next one before deciding. If it never comes, the phone's ring switch, its volume or a Bluetooth earpiece is the usual reason. The two dots on the pad take turns on every beat regardless.