Free sites to find out keys of songs

Finding keys

Here are some free online services where you can upload your audio files to find their key and tempo. Knowing the key and temp are useful for harmonic mixing, remixing songs, and generally to understand your music a little better. If you want to find out key and tempo for many songs (folders and folders of them, for a DJ gig) you may want to invest in the Mixed in Key software instead. But if you just need it for one song, these free sites are good enough. 

This info is provided by Ben Ang, Ableton Certified Trainer (http://learnabletonsingapore.com) and Principal Tutor of the Electronic Music Lab (http://nuseml.com). To learn more about using Ableton Live to make your own music or remixes, contact Ben at ben.ang.music@gmail.com or follow on YouTube or Twitch  or Instagram

 Tunebat


Song Key & BPM Finder
Upload your audio files to find the key and tempo of the tracks in your library. This is a free tool for DJs interested in harmonic mixing, producers looking to remix songs, and anyone trying to understand their music a little better.

Audio Keychain

https://www.audiokeychain.com/

Simply drag and drop any of your tracks into the dropzone and hit the "Upload Tracks" button.
Once the tracks get analyzed you can:

  • Export the results to share with your friends
  • Edit any of the track data
  • Choose whether to save it to our public collection or not
  • Currently they only support MP3 and WAV files with a 15MB file size limit for each track.



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