DJ Cheat Sheet 2026

The 30 highest-yield DJ facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. What is the 'three-deck' mixing technique? → Using three DJ players to blend three tracks simultaneously for complex, layered mixes
2. What happens when two tracks with slightly different BPMs are played simultaneously without correction? → The beats gradually drift apart, causing the mix to sound off
3. The DMC World DJ Championship has been held annually since which decade? → 1980s
4. What is a 'cut mix' or 'cut transition' in DJing? → An abrupt switch from one track to another at a beat boundary with no overlap or blend
5. What does 'EQ sweeping' help a DJ identify in a problematic frequency range? → The exact frequency causing muddiness or harshness
6. What is the standard speed for 12-inch vinyl records used by DJs? → 33 1/3 RPM
7. What does 'mono compatibility' mean for a DJ mixing a club set? → Ensuring the mix sounds acceptable when summed to a single mono speaker channel
8. What happens harmonically when you mix two tracks a semitone apart (e.g., C major into C# major)? → The combination sounds dissonant because the keys share very few common notes
9. Which pioneering female DJ was known as the resident at the Paradise Garage in New York? → Anita Sarko
10. What mixing problem does a 'reverb tail' help solve during a transition? → It smooths an abrupt cut by letting the outgoing track decay naturally into silence
11. What time signature is most common in electronic dance music? → 4/4
12. What does 'line level' mean in DJ audio signal routing? → A standard audio signal level of approximately -10 dBV used between devices
13. What happens when two tracks are 'out of phase' during a mix? → Certain frequencies cancel each other out, causing a hollow sound
14. What is 'gain staging' in DJ mixing? → Adjusting input gain so each track plays at a consistent, matched loudness level
15. What does a DJ need to have in order to create a seamless loop? → A keen ear for music and knowledge of the components of a song
16. What is 'quantize' mode in DJ software? → A mode that snaps cue points, loops, and hot cues to the nearest beat in the beat grid
17. What should be avoided when beat mixing? → Cutting off the vocals of one song abruptly
18. What is the typical BPM range for House music? → 120–130 BPM
19. In music, what is a 'breakbeat'? → A syncopated drum pattern used as a loop
20. What is the role of the 'trim' or 'gain' knob on a DJ mixer channel? → To adjust the input level of a track before it reaches the EQ and fader
21. What is the primary function of a DJ mixer's crossfader? → Blend audio between two channels
22. What is the purpose of a DJ mixer's 'booth output'? → Drive monitor speakers in the DJ booth independently of the main output
23. What was the name of the Chicago club where house music was born, giving the genre its name? → The Warehouse
24. What is 'rekordbox DJ' primarily used for when not used for performance? → Organizing and preparing music library with cue points, grids, and playlists
25. What technique involves briefly touching or dragging the vinyl label to slow a record down and correct phase? → Dragging or braking
26. What does 'EQ kill' mean in a DJ mix context? → Fully cutting a specific frequency band (bass, mid, or treble) to zero on a channel
27. When manually beat matching on vinyl, what technique do DJs use to align beats using headphones? → Cueing in headphones while the other track plays on speakers
28. How can the DJ console be used to synchronize two different tracks? → Adjust Volumes
29. What does 'pitch range' setting on a DJ media player or turntable refer to? → The maximum percentage of tempo adjustment available on the pitch fader
30. Which city is considered the birthplace of techno music? → Detroit