Song length by structure
BPM + bars per part → minutes; or bars in a target length
Structure
Duration
96 Bars (4/4)
3:12
- Intro8 bars · 0:16
- Verses32 bars · 1:04
- Choruses32 bars · 1:04
- Bridge16 bars · 0:32
- Outro8 bars · 0:16
In 4/4 a bar = 4 beats: bars × 4 × 60/BPM = seconds. A 16-bar verse at 120 BPM = 32 s. For 3/4 divide by 3 beats.