From his official facebook page:
"From the family of Gershon Kingsley: Gershon passed away peacefully in his sleep on the morning of December 10th, surrounded by loved ones at home."
That melody brings sooo many good memories of gaming on my commodore 64 when I was a kid. I don't remember which games it was used in, but the melody is burned into my brain
If you want to hear other creations by Gershon Kingsley you can have a go at his sound cloud (funny electronic music, serious electronic music, jazz...)
I especially love his "Anima" album. Ambient made with a Synclavier.