Tempo marking
LargoThe traditional Italian marking for 40–60 BPM: broad and slow.Pulse · tempo · time
45 BPM Metronome
This page opens a working metronome at 45 BPM. Each click arrives every 1333.3 milliseconds (1.333 seconds), which the Italian tempo scale calls Largo. Press start, then change the tempo or the time signature whenever you want — nothing here is locked.
Beats per minute
BPM
1234
Ready at 45 BPM in 4/4.
Tempo facts
How fast is 45 BPM?
A metronome set to 45 BPM plays 45 evenly spaced clicks every minute. Here is what that works out to.
Beat interval
1333.3 ms60000 ÷ 45 = 1333.3 milliseconds between clicks, or 1.333 seconds.Bar length
5.33 sFour beats of 4/4 at 45 BPM fill 5.33 seconds.Half and double time
22.5 / 90One beat per two clicks gives 22.5 BPM; splitting each beat in two gives 90 BPM.How 45 BPM feels
45 BPM gives roughly three clicks every four seconds. Still slow enough that each beat is a separate event rather than a groove, but close enough together that you can hold the pulse without counting subdivisions aloud.
What to practise at 45 BPM
This is the right step up from 40 when a passage is nearly secure but not yet reliable. Moving five beats at a time from 40 up to 60 lets you keep the same hand motion instead of switching to a faster technique halfway through.
Where you meet 45 BPM
45 sits inside Largo. Slow movements marked Largo or Grave in Baroque and Classical scores are often taken somewhere between 40 and 55, depending on the conductor and the hall.
Half time and double time
45 BPM in half time is 22.5 BPM: the same music, counted with one beat for every two clicks. Double time is 90 BPM, where every beat splits into two even eighth notes. Half time falls below this metronome's 30 BPM floor, so count one beat for every two clicks rather than changing the setting.
This relationship is the reason a written tempo and a felt tempo often disagree. Drummers and producers move between the two constantly. Half time is below the range this metronome offers, so to work at it here, leave the click at 45 BPM and count one beat for every two clicks instead of changing the setting.