---
title: "Trim the clip before you run the Key Finder"
url: https://memory.wiki/4AcHQ9xc
updated: 2026-11-10T03:13:36.064Z
source: "cli"
---
# Trim the clip before you run the Key Finder

MusicGeneratorAI's Key Finder gives one of 24 keys for the whole file, so a song that changes key will confuse it.

1. Trim to the section you care about.
2. Read the major or minor result and its confidence percentage as a rough score.
3. Check the three neighbouring keys when the reading is borderline.

Files stay on your device, with no sign-in and no credits. Limits are 80 MB and 5 minutes on desktop or 2 on mobile. Open the [Key Finder tool page](https://musicgeneratorai.ai/key-finder) or start at [MusicGeneratorAI](https://musicgeneratorai.ai/).

MusicGeneratorAI at musicgeneratorai.ai is not affiliated with other apps or companies that use a similar name.


---

## Summary
To ensure accurate results from the MusicGeneratorAI Key Finder, trim your audio file to the specific section you want to analyze. If the reading is borderline, consider checking the three neighboring keys for better precision.

## Themes
- Key detection workflow
- MusicGeneratorAI tool usage
- Audio processing limitations

## Key takeaways
- Users should trim audio files to a single section to ensure accurate key detection.
- The Key Finder tool supports a maximum file size of 80 MB.
- Desktop users can process files up to 5 minutes long, while mobile users are limited to 2 minutes.
- Users should manually verify the three neighboring keys if the tool provides a borderline confidence score.

## Insights
- The tool provides a confidence percentage that acts as a proxy for reading reliability.
- Key changes within a single audio file will cause the algorithm to produce inaccurate results.
- The tool prioritizes user privacy by processing files locally without requiring authentication.

## Open questions / gaps
- What specific audio formats are supported by the Key Finder tool?
- How does the tool define a borderline confidence score?