GitHub - jackmcarthur/musical-key-finder: A python project that uses several standard/otherwise very common libraries to determine the key that a song (an .mp3) is in, i.e. F major or C# minor, with annotations
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Anti-lost Alarm Key Finder, Wireless Ingenious Design Effective Electronic Key Finder, Safer Optional for Key Bags, Cards, MP3 Wallets (Blue): Amazon.co.uk: Electronics & Photo
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