I somehow got drawn into researching everything about the Atari ST series of computers which THE standard and each and every recording studio.

Links:
Kawai K4r (using Steem to emulate K4 editor):    • New life for old synths: Kawai K4(r) ...  
The History of the Atari ST:    • The History of the Atari ST  
Yamaha YM2149 3 voice chip: https://en.wikipedia.org/wiki/YM2149F
C-Lab Falcon MKX: https://www.soundonsound.com/techniqu...
Firebee Clone: http://firebee.org/fb-bin/index
MiSTer (FPGA): https://www.retrorgb.com/mister.html
Infos about Ataris: https://www.atarimuseum.de
Hatari Emulator (Linux, Macos, Windows): http://hatari.tuxfamily.org/
Steem Emulator (Linux, Windows): http://steem.atari.st/download.htm
EmuTOS: https://emutos.sourceforge.io/

Software:
Atari International TOS Software Catalog Winter 1992: https://www.atarimania.com/pgedocumen...
Atari Database: https://www.atarimania.com/
Software Database: https://www.atariuptodate.de/en/midi

Magazines & Books:
German Atari ST Magazine: https://st-computer.org/archiv
Breaking the Borders (book): https://microzeit.com/collections/the...
Atari History Books: https://zafinnbooks.com
Software: https://sites.google.com/view/atarito...