收听一个超级简单的方法任何乐器！
Tune any musical instrument in a super easy way!
You can easily tune:
Violin
Guitar
Piano
Viola
Cello
Bass
And much more!
Just set target note and octave, and play a note with your instrument. This Super Easy Tuner will tell you what action you should take. It tells you not only "Tune Up" or "Tune Down", but also when the pitch is very close to the target "Fine Tune Up" or "Fine Tune Down". With this Super Easy Tuner, anyone could become expert on tuning musical instruments.