That is very sad news Russ. I really understand your loss. A very close friend that I played with for many years passed away many years ago. He was a very talented composer and singer. He released a number of top 10 singles in Australia in the 80s with a band called
Australian Crawl but was capable of so much more. His brother who had drummed with the band contacted me and some other friends after his death to re-record instrumental tracks using Guy's vocal tracks from demo tapes he recorded long before he died. Many of the tape were old 4 track tapes that were found in his garage. It was very strange working on his material with him singing ( but absent ), but also very fulfilling. The album was called "My Place" and then was again released on CD in 1995 as "Lost And Found".
It is great that Mike lives on with you Russ. Do you have any recordings of his music to remember him. I'm sure that's how he'd like to be remembered.