Making music visible. In the early 1970s i lived in a small communal household in Honolulu. One the housemates worked at a music shop at Ala Moana Mall (which was truly beautiful in those days). They sold everything from guitar strings to instruments to speakers and 'lightboxes' (can't recall if that's what official name was for them) which responded to different tones with different colors. He of course got employee discount so we had a set of lightboxes More than one Monday night local professional musicians who played the tourist spots in Waikiki would come to our house to jam with each other, and eat my housemate Toni's cooking. Toni would have been at home here on Ello, cause she was multi-talented , but cancer claimed her a few years back. When my sons were born in Santa Fe in June 1975, the well-wishes that came furthest were from her---she'd gone back to dancing (polynesian traditional) and was part of a touring troupe that was in Japan at the time.
But i digress...being a very visual person i'd get lost in the colors from those boxes. Now a it's been taken to a whole other level with Pyroboards. You might want to watch your volume there's one spot briefly with a high pitched sound that assaulted my ears, but the rest was great fun.