This brain hat helps the paralyzed make music

Musician, Eduardo Miranda, met over eleven years ago a patient with locked in syndrome and was inspired to invent a new way for those who were paralyzed to create their own music. He calls his new invention as the brain computer music interface (BCMI) where they are able to make their own music by using their own eyes. The system is able to tell where you are directing your eyes by connecting electrodes in the back of the head. You are also able to select snippets of music that represent as flashing icons on the screen. At the same time, a musician plays the selected music that the patient chooses. Miranda even says that they are able to amplify and analyze very faint electrical signals. For instance, if you were to have two icons flashing on the screen, where one was flashing 10 hertz and the other at 15 hertz, if you were to look at the 15 hertz, they are able to pick up on it. He even mentioned that they are able to detect up to eight different frequencies.
His latest composition is for a string quartet where there is an interaction between eight people all having different jobs. Four are generating music, while others are playing the music as its being generated. By using the BCMI, musicians have to be highly skilled at reading the score since it is a computer monitor instead of using a regular music sheet. It had a profound impact on Miranda, as a musician, that he was able to give them a voice to use. What these paralyzed patients really missed was the interaction with other people and not with other machines, which was why the machine was created.