My father was a trained handset music typesetter/typographer in the 40s-50s, head of the music typesetting department, Baptist Sunday School Board. He was sent to Colorado to view the "new" Musicwriter. Brought one home and eventually the entire typesetting department at the BSSB was shut down. I actually still have some of the discarded type, cases, and galleys that he salvaged. He went into business for himself, setting the type for companies like Tree Publishing, whose songwriters could not write music, just played it. But in order for their music to be copyrighted, it had to be in print version. He designed clean, type-set leadsheets for hundreds of artists and publishing companies. He also set many hymnals. With the advent of Finale software, of course, the Musicwriter became part of the printing industry history. He was contacted by the Smithsonian concerning the artifacts and his knowledge, but he passed away before that came to fruition. I am probably one of few left who was trained on the Musicwriter.