A guitar with LEDs on its frets
This instrument was developed by João Tragtenberg, Filipe Calegario from Batebit Artesania Digital (https://batebit.cc) in partnership with the string instruments luthier Rodrigo Veras (https://corpodusom.blogspot.com/) and the company Daccord Music Software (https://www.daccord.com.br/) as a first prototype for a acoustic guitar connected to a mobile app for educational purpuses.
Rodrigo his father and myself finishing the guitar
First time it lit
vioLED shining back to its maker Rodrigo Veras
Full lights in João's workshop
Example of chord progression mode