Currently the manual for KCS version 1.6 and the PVG manual as distributed on TAMW, details below.
The original texts are in the process of being edited for easier consumption.
Various other pieces of documentation for KCS will end up here too.
Read the content of this repo as generated web pages here - https://kcs-manuals.netlify.app/
The 'defintive' shareware version was available as a download from Tim's Atari Midi World which is no longer online.
Fortunately a mirror exists of that site, here - https://www.exxoshost.co.uk/atari/mirror/tamw/
The KCS pages are https://www.exxoshost.co.uk/atari/mirror/tamw/omega.htm where a file kcs4.zip can be downloaded. The following notice is on that page, relating to this zip;
NEW!! KCS Omega Ver 4.0 NOW AVAILABLE !
This version originally appeared as an ST Format Cover Disc.
NEW: 2-20-03 Dr T has now approved of KCS ver 4 with Song Edit, PVG and the Master Editor (for this you click on level2.prg within the archive). The KCS ver 4 has been repackaged with several example PVG files. Included is also Tempo Master MPE (now freeware) by Jeffery Raid Baker. The PVG docs are also available. See download section.