My first release was "Shark Fur Trilogy" composed in 1974 with a home built variant of the Practical Electronics analog synthesiser. Recorded using sound-on-sound on an Akai 4000DS reel-to-reel two-track tape deck.
Now I am retired from a non-musical career, in due course I hope to add something more contemporary along the lines of musique concrete based on live sounds recorded over many years.