How fast is drum and bass? A plain guide to the tempo

Ask a DJ how fast drum and bass is and you will get a number: 174. It is the figure you see printed on flyers, shouted in tune names and used as shorthand for the whole scene. The reality is a little looser, but the shorthand is a good one.

The range

Wikipedia describes the genre as built on fast breakbeats, typically 165 to 185 beats per minute, with heavy bass and sub bass lines. In practice, most records sit in a narrower band around 170 to 175. A few styles drift outside it. Some jungle records run a little slower, and some of the harder neuro and techstep releases push faster.

That narrow band is useful. It means a DJ can play records from different labels, countries and decades without major pitch changes, and it gives the dancefloor a shared pulse.

Why it feels even faster than it is

The tempo alone does not explain the energy. Most drum and bass leans on a two step breakbeat: a kick, a snare on the second and fourth beats, and busy hi hats and ghost notes around them. Because the bass lines move slowly against that busy drum pattern, the music often feels like it has two speeds at once. The drums run at full tilt while the bass moves at roughly half that pace.

That tension is what many dancers respond to. You can nod to the slow bass or skank to the fast snare, and both feel right.

What it means for mixing

Because so much of the music lives in the same range, drum and bass is a friendly style to learn beatmatching on. The principle is the same as anywhere in dance music. You monitor the next record in your headphones, match its tempo to the one playing, line up the beats and bring it in with the mixer, as the Beatmatching article on Wikipedia sets out. The difference is the speed: at 174 beats per minute, small errors drift apart quickly, so drum and bass DJs tend to get good at listening and nudging, rather than leaving a mix on autopilot.

Half time and the slower cousins

Not everything in the family is fast. Half time drum and bass keeps the same underlying grid but puts the snare on beat three of each bar, so the music feels like it is moving at around 87 beats per minute while the hi hats and the sub still run at the faster pace. Jungle with a heavy ragga influence often sits slightly lower than modern rollers. Neither is wrong; they are different ways to make the same pulse.

Why 174 stuck

Nobody agreed on the number in a meeting. Producers working with the same tools and the same kind of samples tended to land in the same area, DJs found it easy to mix records that matched, and the habit became a standard. If you are making a first drum and bass track, 174 is a sensible place to start. If you are dancing to one, you do not need to count; the kick and the snare will tell you what to do.