![](https://play-lh.googleusercontent.com/EGemoI2NTXmTsBVtJqk8jxF9rh8ApRWfsIMQSt2uE4OcpQqbFu7f7NbTK05lx80nuSijCz7sc3a277R67g=s32)
A Google user
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I'd love to give this a better rating, because the app itself is great. Only a metronome lacks. BUT the app is constantly being detected to use the microphone running in background, which is inacceptable, when I don't use the app. This app doesn't need to be running in the background. It does not need full internet access and it does not need to know which connections I use. At least not, if you don't spy on me.
62 people found this review helpful
![](https://play-lh.googleusercontent.com/EGemoI2NTXmTsBVtJqk8jxF9rh8ApRWfsIMQSt2uE4OcpQqbFu7f7NbTK05lx80nuSijCz7sc3a277R67g=s32)
A Google user
Great application, very useful especially for learning and fine-tuning bends and overblows. Would be even better if it handled lower-keyed instruments (e.g. Hohner Thunderbird), which in my experience are harder to bend. But perfect for any middle-key harmonica.
10 people found this review helpful