TuneItDS is a homebrew application for tuning guitar using your NDS.
It was submitted to the NEO Flash Coding Compo 2011.
Download and extract file.
Put the ROM onto flash card via an SD card or external drive.
It is equipped with 14 different tuning styles and the interface to find in a modern guitar tuner.
Up/Down - Move the selected string
Left/Right - Change the tuning style
Stylus - Select a specific string
It supports DSMotion card, tilt your DS Forward/Backward/Left/Right to emulate the effects of the Up/Down/Left/Right physical inputs, respectively.
Producer: Richard "zhangzi89" Zhang.
Software Developer: Daniel "x711Li" Li.
Graphic Design: Jason "diSTurBedDeSIGNs" West.
Thanks to: Neoflash, devkitPro, PALib.