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Music Production Calc – Song Length Calculator
x402
Music Production Calc – Song Length Calculator is a paid API for AI agents from music-production-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-02).
Calculates song length in seconds and M:SS from bars, BPM, and time signature, and optionally computes the bars needed or BPM required to hit a target duration.
Price / call$0.02
Success—
StatusUnknown
How this service works
Song length in seconds and m:ss from bars, BPM and time signature, plus bars or BPM needed for a target length.
Output
Returns total song duration in seconds and M:SS clock format, along with derived values like bars per minute, seconds per bar, total beats, and seconds per counted beat. When a targetSeconds value is provided, also returns the number of bars needed and the BPM that would make the given bar count fit exactly into the target duration.
Example use cases
DJ set segment timing
“I have a track section that's 64 bars at 174 BPM in 4/4 — how long is that in minutes and seconds?”
Fit track to broadcast slot
“I need my song to be exactly 3 minutes 30 seconds. It's 128 bars in 4/4 — what BPM do I need to hit that target?”
6/8 waltz duration check
“How long is 48 bars at 120 BPM in a 6/8 time signature, where the BPM counts eighth notes instead of quarter notes?”
Technical details
Endpoint
GEThttps://music-production-calc.x402tookit.com/song-length?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need precise musical timing calculations — converting bars and tempo to wall-clock duration, or reverse-engineering the BPM or bar count to hit a specific length. It natively handles non-standard time signatures and BPM counting modes (quarter vs. denominator note), making it more accurate than generic calculators for compound meters like 6/8 or odd time signatures.
Side effects
- Missing required 'bars' or 'bpm' parameters returns a validation error
- BPM outside the 20–400 range may be rejected or produce implausible results
- Invalid beatUnit (not 1, 2, 4, 8, or 16) causes a schema error
- Invalid bpmUnit string causes an error
- Payment not included or insufficient results in HTTP 402 Payment Required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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