Erhu Tuner is a chromatic tuner for erhu that allows you to quickly and accurately tune your instrument using cell phone.
This app uses your phone's microphone to listen and analyse the sound in real time and indicate if the note is sharp or flat.
Erhu has two strings.The inside string (nearest to player) is tuned to D4 and the outside string to A4.
You can press the buttons at the bottom of the screen to play the sample sound of a erhu string.