Guitar Tuner App
My guitar-playing daughter uses a Guitar Tuner app on her Android phone. This proves to be a useful app since she is not that adept in tuning her guitar yet because she always asks her father to do the tuning for her.
I say this is what technology is all about, children learning new things independently. Of course, interpersonal interaction is still best but what if, in cases like these when she needs to tune her guitar and my husband is at work