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What Key

What Key is a key detection app that determines the musical key of a song in real time

What Key is a key detection app that determines the musical key of a song in real time

What Key

by Mark Carlotto
What Key

What is it about?

What Key is a key detection app that determines the musical key of a song in real time. Using the pitch detection algorithm from Pitch to Note, What Key matches the notes being played to major, minor, blues, bebop (jazz) and other scales in all keys, picking the scale and key with the best match.

What Key

App Details

Version
3.6
Rating
(29)
Size
4Mb
Genre
Music Education
Last updated
January 7, 2017
Release date
January 15, 2009
More info

App Store Description

What Key is a key detection app that determines the musical key of a song in real time. Using the pitch detection algorithm from Pitch to Note, What Key matches the notes being played to major, minor, blues, bebop (jazz) and other scales in all keys, picking the scale and key with the best match.

What Key is a universal app that runs on iPod Touch, iPhone, and iPad.

What Key works best on music with minimal percussion tuned to A4=440 Hz.