I thought this was going to be about keyboards for typing...
Trivia:When Queen recorded "A night at the Opera", it was the most expensive album ever recorded up to that date because they imported all the instruments heard on the album. There are no synths. They had grand pianos harps, all sorts of stuff shipped to the studio. They even refused to use effects on the vocals and instead would tons and tons of vocal tracks to create effects. I read somewhere that when they recorded the song " The Prophet song" they recorded so many vocal overdubs the tape was transperant.