Online Tool Store
Song Structure Planner
Plan a song arrangement from tempo and time signature, using genre templates or a custom bar layout, with a visual timeline and exact section and total durations.
🔒 This tool runs entirely in your browser. Your files are never uploaded to a server.
Arrangement Timeline Sections
| Order | Section Name | Bars / Measures | Calculated Duration | Key Musical Energy / Dynamics | Action |
|---|
Estimated Song Duration
3:28
8 sections planned
Total Measure Bars
104 Bars
416 total quarter beats
Radio Commercial Sweetspot
Ideal Pop Length (3:00 - 3:45)
Optimal streaming retention length
How it works
- Set your track tempo in BPM (Beats Per Minute) and musical time signature (4/4, 3/4, or 6/8).
- Load a genre structure template (Pop, EDM/Dance, or Rock AABA) or build a custom arrangement timeline.
- Add, remove, or adjust bar measures for verses, choruses, pre-choruses, breakdowns, and bridges.
- Examine the proportional visual timeline bar, exact runtime durations for each section, and total track length.
The formula
Seconds Per Bar = (60 / BPM) × Beats Per Measure
Total Song Duration (s) = Total Bars × Seconds Per Bar
FAQ
What is the standard contemporary pop song structure?
The most ubiquitous commercial pop song structure is: Intro → Verse 1 → Pre-Chorus → Chorus → Verse 2 → Pre-Chorus → Chorus → Bridge → Chorus (Final Climax) → Outro.
How do you calculate song length from tempo (BPM) and bar counts?
In 4/4 time, one bar (measure) equals 4 quarter-note beats. At 120 BPM, one beat is 0.5 seconds, meaning each 4-beat bar lasts 2.0 seconds. A 100-bar song at 120 BPM lasts exactly 200 seconds (3 minutes 20 seconds).
What is the function of the Pre-Chorus and Bridge in songwriting?
The Pre-Chorus serves as harmonic and dynamic tension-building transition from the lower energy verse to the explosive chorus. The Bridge introduces a contrasting melody, new chord progressions, or emotional shift after the second chorus before the final release.
What is the ideal song duration for modern music streaming and radio?
Contemporary streaming algorithms and radio programming favor tracks between 2 minutes 45 seconds and 3 minutes 30 seconds to optimize replay value and reduce listener skip rates.
How we compare
| Feature | Online Tool Store | Digital Audio Workstations (DAWs) | Songwriting scratchpads |
|---|---|---|---|
| Interactive visual arrangement timeline bar | ✓ | ✓ | ✗ |
| Dynamic BPM-to-duration timecode calculation | ✓ | ✓ | Manual |
| Instant pre-loaded genre songwriting templates | ✓ | ✗ | ✗ |