# Time Signature — Music Knowledge

> Time signature = how rhythm is organized. Affects feel fundamentally.

## What is time signature

Two numbers like 4/4:
- Top number = beats per bar
- Bottom number = note value getting one beat (4 = quarter note)

## Common time signatures

### 4/4 (common time) — DEFAULT
- 4 beats per bar
- Most popular music uses this
- Pop, rock, hip-hop, R&B, country, EDM
- "ONE-two-three-four ONE-two-three-four"

### 3/4 (waltz time)
- 3 beats per bar
- Triple feel
- Waltz, country ballads, some folk
- "ONE-two-three ONE-two-three"

### 6/8 (compound duple)
- 6 beats per bar grouped into 2 (1-2-3, 4-5-6)
- Flowing, lilting feel
- Folk, blues, ballads, Celtic music
- "ONE-two-three FOUR-five-six"

### 12/8 (compound quadruple)
- 12 beats per bar grouped into 4
- Slow blues, gospel, swing ballads
- Triplet feel
- Common in slow R&B

### 5/4 (asymmetric)
- 5 beats per bar
- Less common, distinctive
- "Take Five" by Dave Brubeck
- Used for unusual feel

### 7/8 (asymmetric)
- 7 beats per bar
- Common in Eastern European folk, prog rock
- Pink Floyd "Money" (7/4 actually)
- Distinctive uneven feel

### 9/8 (compound triple)
- 9 beats per bar
- Less common
- Modal jazz, certain folk

## Time signature by genre

### 4/4
- Pop, rock, hip-hop, R&B, country, electronic, jazz (most), most film score

### 3/4
- Waltz, country ballads, some folk, "Norwegian Wood" (Beatles)

### 6/8
- Slow blues, gospel ballads, Irish jigs, "House of the Rising Sun"

### 12/8
- Slow blues, gospel ballads, "Hey Jude" (chorus feel)

### 5/4
- "Take Five" (Brubeck), Mission Impossible theme

### 7/8
- Eastern European folk, progressive rock

### Mixed time signatures (advanced)
Progressive metal, prog rock. Changing within song.

## Cultural time signatures

### Azerbaijani folk
- Yallı dance: often 6/8
- Mugham: free time often (no strict signature)
- Modern Azerbaijani pop: usually 4/4

### Middle Eastern
- 9/8 common (Bulgarian/Turkish folk)
- 7/8 common
- Asymmetric rhythms valued

### Latin
- 4/4 standard
- Salsa, Cuban: clave rhythm in 4/4

## How time signature affects mood

### 4/4
Driving, predictable, accessible. The default for a reason.

### 3/4
Romantic, flowing, dance-like. Lilting feel.

### 6/8
Gentle, flowing, often nostalgic. Lullaby feel.

### 12/8
Bluesy, gospel-like. Slow but with internal triplet motion.

### Asymmetric (5/4, 7/8)
Distinctive, unusual, sometimes anxious or off-balance feel.

## For AI music (Suno)

Specify if not 4/4:
```
[Style: folk ballad, 75 BPM, 6/8 time signature]
```

For 4/4 (default), no need to specify.

## Common time signature mistakes

- Wrong genre for time signature (e.g., 6/8 for trap)
- Inconsistent within song (unintentional)
- Asymmetric without purpose
- Not specifying when non-4/4 (Suno defaults to 4/4)
