Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

ECHO / Guitar sheet music device


"The Passion and opportunity to enjoy music should be fair to everyone." Many blind people have difficulty learning braille. But they have to relearn the complicated and inefficient braille sheet music for playing musical instrument. ECHO is a new sheet music device designed to replace braille sheet music for blind guitar player. I solved the problem by using real-time sheet music conversion of recorded songs, intuitive interface based on guitar and sensory signals.


Korea Polytechnic University

Korea Polytechnic University
Seoul, South Korea

Hyeon Gu Kwon,
Korea Polytechnic University