ANSWER · ARRANGEMENT & DJ EDIT
How Many Bars Should a DJ Intro and Outro Be?
The most common DJ intro is 16 bars and the most common outro is 32 bars. Use 8-bar intros for quick-mix styles, and 32-bar intros with 64-bar outros when you want room for long, gradual blends. Club Ready Music offers exactly these choices and defaults to 16 in and 32 out.
Why bars, not seconds
DJs count music in bars and phrases, not seconds. Almost all dance music is in 4/4 with four beats to a bar, and arrangements change every 8, 16 or 32 bars. An intro that is 16 bars long lines up with the phrases of the track being mixed out, so the first downbeat of the new song lands exactly where a phrase in the old song ends. An intro of 20 seconds would not.
The length in seconds depends on tempo:
| BPM | 8 bars | 16 bars | 32 bars | 64 bars |
|---|---|---|---|---|
| 100 | 19 s | 38 s | 77 s | 154 s |
| 124 | 15 s | 31 s | 62 s | 124 s |
| 128 | 15 s | 30 s | 60 s | 120 s |
| 140 | 14 s | 27 s | 55 s | 110 s |
| 174 | 11 s | 22 s | 44 s | 88 s |
Choosing the intro length
- 8 bars: open-format, hip-hop, pop and wedding sets where the DJ cuts quickly and the dancefloor expects the vocal fast. Also good for radio-style mixes.
- 16 bars: the default for house, tech house, disco, pop remixes and most club play. Enough time to match and swap levels, short enough that the crowd does not wait.
- 32 bars: techno, progressive, trance and melodic sets where blends run a minute or more and the DJ layers two tracks for a long time.
Choosing the outro length
Outros can be longer than intros because the outgoing track is already fading in the mix. Half the audience barely notices it. The common pairs are 16 in and 32 out, or 32 in and 64 out. Open-format DJs can get away with a 16-bar outro.
Related settings in Club Ready Music
In the Studio, the DJ mix edit section sets intro bars (8, 16, 32), outro bars (16, 32, 64), the bar where the first drop lands (16, 32, 48) and break length. In DJ Edit, intro bars can also be set to None if the song already has a usable intro, and the outro to None if you only want the front fixed. The bass joins in the second half of the intro by default, which helps a long 32-bar intro feel like it is going somewhere.
Frequently asked
How long is 16 bars in seconds?
At 128 BPM a bar lasts 1.875 seconds, so 16 bars is 30 seconds and 32 bars is one minute. At 100 BPM, 16 bars is about 38 seconds. The formula is bars times 240 divided by BPM.
Do hip-hop and open-format DJs want the same lengths?
They tend to want shorter intros, often 8 bars, because they cut between tracks quickly rather than blending for a minute. A 16-bar outro is usually enough.