Making its first appearance in 2009 on Apple’s iOS App Store, the original Song KeyFinder made by Scoreless Music is back after 13 years!
Ever wondered what the key of a song being played is? Wonder no more! Just use the built-in piano keyboard to play along with a song’s melody. As you confirm notes that coincide with what’s being played, KeyFinder will narrow down the number of possible keys the song is in.
Scoreless Music 
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