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Key+ app for iPhone and iPad


4.8 ( 9568 ratings )
Utilities Music
Developer: Daniel Casady
1.99 USD
Current version: 2.4, last update: 4 years ago
First release : 10 Dec 2012
App size: 3.77 Mb

Key+ is a handy tool for estimating the musical key of digital recordings and live audio. A must-have for musicians and DJs, Key+ analyzes audio and returns both the key and its relative major or minor signature.