Piano Tuning DIY!

A simple iPhone/iTouch tool to tuning a piano. Piano tuning is a surprisingly simple process, using the three pictured tools: mutes, electronic tuner and a tuning wrench. Features:Tuning: 12 note equal-temperedAutomatic note selection (automatically adjusts to the note being played)Frequency response 25Hz - 10KHzDetection range: A0 (27.50Hz) - C8 (4186.01Hz)Detection Accuracy: 1Hz (Better than 1cent)Sound pressure level (SPL) displayHarmonic Analyzer (1x-16x) when recording and playbackAppleIMA compress recorded audio file size to 20%Pause when recording and replayingThe progress of control when replayingEmail recorded Piano Key note