Very cool ... I did the same with an old IBM mainframe. Our team also used the IBM 1403 printer to create music.Cpilot wrote:Well, I feel like boasting a little. Back in 1965 I wrote a music compiler for a mainframe. You punched up your paper tape using four characters to describe each note (a bit like midi), the compiler read it in and the computer played the tune. The computer didn't have a speaker, but since the cycle time was only 150 kHz, you could tune in the processor on an AM radio. Those were the days - steam computing!
Bryan
For those of you not familiar with this printer it was a high speed impact printer, think of it as a high speed typewriter. You could countol the pitch by printing different strings of characters. Strings of dots or dashes wiere higher pitches and X's and W's lower.
We used to shred a lot of printer ink ribbons in those days.