Posts in the “Sound” Category

Classical Mosquito!

Classical Mosquito! was a record of “neo-Baroque” music played entirely by a TRS‑80 Model I. It was created by Robb Murray in 1983 and was one of the earliest records consisting solely of computer generated music. The Kids’ World Almanac of Records and Facts in 1985 described Classical Mosquito! as “the first commercial record made entirely by computer.”


Like many personal computers at the time, the TRS‑80 Model I had fairly primitive built-in sound capabilities. That changed in 1980 with the introduction of the Orchestra-80, a small $79.95 unit that plugged into the TRS‑80 and could play music with four simultaneous voices over a six octave range. Orchestra-80 was sold by Software Affair, Ltd., a company created by Bryan Eggers and Jon Bokelman. It became one of the best remembered hardware add-ons for the TRS‑80.


TRS-Opera, written by Richard Taylor, was an early TRS‑80 music program. It was distributed by Acorn Software and sold for $9.95.

TRS-Opera is a BASIC program with an embedded machine language sound routine. The sound routine plays notes through the TRS‑80 cassette port very rapidly, simulating more than one note at a time.