Analyze a Song's Key, BPM & Time Signature

Analyze a Song's Key, BPM & Time Signature

Typing in a song's tempo and key by ear is easy to get wrong, especially for a fast worship anthem or a song in an unusual meter. TimelyChurch can listen to an uploaded recording and detect its BPM, key, and time signature for you -- then let you apply any of them to the song with one tap. This is a Pro plan feature.


Where to Find It

  1. Open a song in the Song Library and go to its Attachments tab (or an arrangement's attachments).
  2. Upload an audio recording, or find one you already have.
  3. An Analyze button appears next to the recording.

Right after you upload a new recording, a small prompt also offers "Just uploaded -- detect BPM, key & time signature?" so you don't have to go looking for the button.

The Analyze button next to an uploaded audio recording, with the "Just uploaded" prompt


Running an Analysis

Tap Analyze and the recording is queued for detection:

  • Queued -- shows your position in line if the analyzer is busy with other churches' requests ("2 ahead of you," or "you're next").
  • Analyzing... -- usually finishes in under a minute.
  • Completed -- a suggestion card appears with the detected BPM, key, and time signature, each with its own Apply button.
  • Failed -- a friendly "couldn't analyze this file" message. A failed analysis never counts against your monthly quota (see below), so trying again is free.

The suggestion card mid-analysis, showing the queued/processing state


Applying a Suggestion

Nothing is changed automatically. Each detected value -- BPM, key, time signature -- has its own Apply button, so you decide exactly what to accept. Applying BPM or key updates the song (or arrangement) immediately and is reflected everywhere that value is used: the chord chart editor, setlists, and My Stand.

Fast Songs: the Half/Double-Time Check

Fast, driving songs are often detected at exactly double (or half) their "felt" tempo -- a ballad might come back as 146 BPM when a worship leader would call it 73. When this is likely, the suggestion leads with the more natural reading and offers the alternative right alongside it (for example, "73 -- or 146?"), so you are not stuck with a number that feels wrong when you count it out loud.

Time Signature Confidence

Time signature is the hardest of the three to detect reliably, so a low-confidence result is always labeled as such right on the suggestion (for example, "4/4 (low confidence)") rather than presented as a certainty. Meter detection analyzes roughly the first minute of the recording.


Monthly Quota and Rate Limit

Analysis runs on a shared, dedicated worker, so each church has a monthly quota (50 analyses per month by default) and an hourly rate limit to keep things fair. A few things to know:

  • Failed analyses do not count against your quota -- only completed, real attempts do, so a technical hiccup never eats into your allowance.
  • If your church's monthly quota is used up, you will see a clear message telling you it resets next month.
  • If you hit the hourly limit, you'll be asked to wait a few minutes before requesting another analysis.

What Won't Be Analyzed

Audio that runs far longer than a typical song or arrangement recording (sermon-length audio, for example) is refused up front with a friendly message, rather than queued and left to fail later.


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Last updated: August 5, 2026

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