For those who love playing guitar but don't know how to tune this is perfect for you. I do recommend Guitar Tuna.
It's free and downloadable from google play.
Also, it can tune other instruments such as the following:
Just strum your instruments and it can automatically catch and read it's pitch.
Nice post ,upvoted
https://steemit.com/life/@tofelix/adire-making-a-tool-for-developing-nations
its really good job for you ,and very helpful for every one .
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