Tempo is how fast a piece of music moves. BPM, short for beats per minute, is the number we use to measure it: 120 BPM means 120 beats every minute, which is one beat every half second. A higher BPM is a faster tempo, and a lower one is slower. Here is what BPM means, how tempo is written on a score, how it differs from time signature and rhythm, and how to find the BPM of any song.
What BPM means
BPM counts how many beats fall in one minute, and a beat is the steady pulse you tap your foot to. When you clap along to a song without thinking about it, you are marking its beats, and BPM simply puts a number on how quickly those pulses arrive. At 60 BPM there is one beat every second; at 120 BPM there are two beats every second. That is why higher numbers feel faster: more pulses are packed into the same minute. Real music sits in fairly predictable ranges. A slow ballad tends to sit around 60 to 70 BPM, most pop lands between 100 and 130, dance tracks cluster around 120 to 130, and fast punk or hardcore can run past 180. The number gives you a shared, exact way to describe a speed that words like "slow" or "upbeat" can only gesture at.
How tempo is marked on a score
Tempo is written on a score in two ways: a precise metronome mark or an Italian word. A metronome mark pairs a note value with a number, such as a quarter note equals 120, which means the beat unit happens 120 times per minute. This is the exact instruction a metronome or a piece of software can follow to the click. Which note value carries the beat depends on the time signature, so the same number can mean different things depending on whether the quarter note or the dotted quarter is the pulse. Our guide to what is a time signature covers how the beat unit is chosen.
The older, less precise method is an Italian word placed above the first measure, giving a feel rather than a fixed number. The common terms, from slow to fast, and their rough BPM ranges are:
- Largo. Very slow and broad, around 40 to 60 BPM.
- Adagio. Slow and stately, around 60 to 76 BPM.
- Andante. A walking pace, around 76 to 108 BPM.
- Moderato. Moderate, around 108 to 120 BPM.
- Allegro. Fast and bright, around 120 to 156 BPM.
- Presto. Very fast, around 168 to 200 BPM.
These ranges overlap and are not strict, which is exactly why a metronome mark is added when the composer wants a specific speed. Many scores use both: the Italian word for character and the metronome number for precision.
Tempo vs time signature vs rhythm
Tempo, time signature, and rhythm are three separate things that people often blur together. Tempo is the speed of the beat, measured in BPM. The time signature is how those beats are grouped into measures, such as four beats to a bar. Rhythm is the pattern of note lengths that plays out within that framework. They are independent: you can keep the same time signature and the same rhythm while speeding the tempo up or slowing it down, and you can change the rhythm without touching the tempo at all. A song at 90 BPM in four beats per bar can carry a busy, syncopated rhythm or a plain one, and the tempo number says nothing about which. For how those note lengths work, see note values and rhythm.
How to find the BPM of a song
The quickest way to find a song's BPM by hand is to tap along with the beat, count your taps over 15 seconds, and multiply by four to get the count for a full minute. If you tap 30 times in 15 seconds, the song is about 120 BPM. There are two faster options:
- A tap-tempo tool. Tap a key or button in time with the music and it averages your taps into a BPM reading, which is steadier than counting by hand.
- Automatic detection. Software can analyze the audio and report the tempo for you, with no tapping at all.
One thing to watch: a detector can land on double or half the real tempo when the beat is ambiguous, so sanity-check the number against how the song actually feels. For the full method, including finding the key at the same time, see how to find the key and BPM of a song. If you are still getting comfortable with the staff, how to read sheet music is a good starting point, and the music notation glossary has quick definitions of the surrounding terms.
Frequently Asked Questions
What is tempo in music?
Tempo is how fast a piece of music moves, the speed of its underlying beat. It is what makes one performance feel like a slow ballad and another feel like a fast dance track. Tempo is measured in beats per minute, and a piece can hold one tempo throughout or shift between sections.
What does BPM mean?
BPM stands for beats per minute, the number used to measure tempo. It counts how many beats fall in one minute, so 120 BPM means 120 beats every minute, or one beat every half second. A higher BPM is a faster tempo and a lower BPM is a slower one.
What is a metronome marking?
A metronome marking sets an exact tempo by pairing a note value with a number, such as a quarter note equals 120. It means the beat unit, here the quarter note, happens 120 times per minute. It is the precise alternative to an Italian word like Allegro, which gives only a rough range.
How do you find the BPM of a song?
Tap along with the steady beat, count your taps over 15 seconds, and multiply by four to get beats per minute. You can also use a tap-tempo tool, where you tap a key in time and it reports the BPM, or let software detect the tempo automatically from the audio.
Want the tempo worked out for you? Songscription detects the tempo of your recording and writes the tempo marking onto the score, so the BPM is set before you play a note.
