14 of 16 people found the following review helpful
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This review is from: KeyChord (App)
This is an excellant companion to the piano player who is just learning to use a Fake Book. It's a little slower than knowing how to make a 7th or a 9th in Major or minor cords. But with this you don't have to know how, you can see the cords and you can hear them. Something like this is available at music stores, but at a higher price.