Resources

[hornc]

Nyquist manual:

• https://www.cs.cmu.edu/~rbd/doc/nyquist/

Peter Grogono's Blog

• http://users.encs.concordia.ca/~grogono/Bio/ems.html
• Now archived.

1973 article describing MUSYS

• (public link needed)
• This the DOI URL to identify it, but all non-institutional digital access is pay-walled AFAICT: https://doi.org/10.1002/spe.4380030410

General MUSYS / EMS hardware overview:

• https://www.musicainformatica.org/topics/musys.php

Nice EMS synth blog topics for hardware references:

• https://djjondent.blogspot.com/2019/06/ems-index.html

The EMS Synthi 100 was the core of the MUSYS system, and most (if not all) of the hardware devices appear to be modules of a single Synthi 100

• General info https://www.musicainformatica.org/topics/ems-synthi-100.php
• 1971 Synthi 100 brochure with information about using MUSYS software https://whitefiles.org/rwz/zxe/1971_synthi_100.pdf
• Engineering article with more info https://portal.engineersaustralia.org.au/system/files/engineering-heritage-australia/nomination-title/Synthi%20100.Nomination.V7.27%20May%202016_0.pdf

Peter Zinovieff interview

• https://www.soundonsound.com/music-business/all-about-ems-part-1 (mentions ADSR envelopes, and 64 filter bank in early studio ~1966)

Publicly editable wikis which could have more info added:

Esolangs.org article for MUSYS (I am the only contributor to the article, so it's just summarising everything I gleaned from these other sources)

• https://esolangs.org/wiki/MUSYS

Wikipedia has a redirect page for MUSYS -> EMS, but no details on MUSYS itself.

• https://en.wikipedia.org/w/index.php?title=EMS_Musys&redirect=no

[hornc]

MIDI note numbers and frequencies: https://inspiredacoustics.com/en/MIDI_note_numbers_and_center_frequencies