"Electronic" Musical Instrument 1870 - 1990

Hi,

Here's a nice collection of older musical instruments, many of which were devised to permit experimentation with microtonality as well as new timbres and rhythms:
http://www.obsolete.com/120_years/

When he was still young, maybe twenty years ago, I took my son to see Percy Grainger's "Free Music Machine" at the Grainger Museum, University of Melbourne.
http://www.obsolete.com/120_years/machines/free_music_machine/index.html
We were lucky enough to get from the then curator a cassette tape transcription of Grainger and his wife playing some experiments on it.
Regards,
Yahya

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