DJ Music Theory for DJs 2 — Questions and Answers
Question 1: What is a 'bar' (or measure) in music?
- A section of 16 beats
- A fixed grouping of beats defined by the time signature, typically 4 beats in 4/4 time (Correct answer)
- A 32-beat phrase
- A single kick drum hit
Correct answer: A fixed grouping of beats defined by the time signature, typically 4 beats in 4/4 time
A bar or measure is a unit of music containing a fixed number of beats as defined by the time signature, with 4/4 being the standard in electronic dance music.
Question 2: What time signature is most common in electronic dance music?
- 3/4
- 6/8
- 4/4 (Correct answer)
- 5/4
Correct answer: 4/4
4/4 time, meaning four quarter-note beats per bar, is the universal standard in house, techno, trance, hip-hop, and most other DJ-played genres.
Question 3: What is a '16-bar phrase' and why is it important for DJs?
- A loop of 16 individual beats
- A standard structural section in dance music consisting of 16 bars, marking natural mix-in and mix-out points (Correct answer)
- A DJ technique of mixing for 16 bars only
- A 16-second audio clip
Correct answer: A standard structural section in dance music consisting of 16 bars, marking natural mix-in and mix-out points
Most dance music is structured in 16-bar (or 32-bar) phrases, giving DJs predictable transition points where new elements enter or exit the arrangement.
Question 4: What is the 'downbeat' in a bar of 4/4 music?
- The last beat of a bar
- Beat 1 — the first and strongest beat of a measure (Correct answer)
- The snare drum hit
- Any beat below 100 BPM
Correct answer: Beat 1 — the first and strongest beat of a measure
The downbeat is beat 1 of a measure, typically the strongest beat and where the kick drum lands in most electronic dance music.
Question 5: What is a 'dominant' chord and why can it matter for harmonic mixing?
- The loudest chord in a track
- The chord built on the 5th degree of a scale that creates tension resolving back to the root (Correct answer)
- A power chord used in rock
- The first chord of any progression
Correct answer: The chord built on the 5th degree of a scale that creates tension resolving back to the root
The dominant chord (V chord) creates harmonic tension that naturally wants to resolve to the tonic (I chord), which DJs can exploit for emotionally satisfying key transitions.
Question 6: What does 'parallel keys' mean in harmonic mixing?
- Two tracks with the same BPM
- Major and minor keys sharing the same root note (e.g., C major and C minor) (Correct answer)
- Two keys with identical chord progressions
- Adjacent keys on the Camelot Wheel
Correct answer: Major and minor keys sharing the same root note (e.g., C major and C minor)
Parallel keys share the same tonic note but use different scales — C major and C minor both center on C but have different emotional qualities and note sets.
DJ Music Theory for DJs 2
What is a 'bar' (or measure) in music?