Over the years, Simon has had several noteworthy successes as a songwriter and as a musician including 'We got Love' co-written by Simon and Johnny Goodison in 1975 by the British band Blackwater Junction which was subsequently released by Donny and Marie Osmond on their album New Season in 1976.  He also co-wrote 'Heart and Soul' with Andrew Howell which was the final hit by the Monkees in 1987.

Simon also played drums with the 1976 Eurovision Song Contest winner ‘Save Your Kisses For Me’ by the Brotherhood of Man. This was to become the highest selling single by a Eurovision winner ever. It even outsold ABBA! Simon was also one of the backup singers for the 1982 UK Eurovision entry ‘One Step Further’ by Bardot. "We didn’t win that time but also very cool".

The songs that Simon has written are heavily influenced by all the experiences that he has had over the years. He’s been lucky enough to have collaborated with a number of people in the UK, principally with Henry Marsh and Andrew Howell. In addition he collaborated with Shaun Kirkpatrick in the UK and, more recently, with Colin Newell in Canada.

Andrew Howell and Simon were introduced to each other by Record Producer Roger Bechirian in the early 80’s and have been involved in many projects together including Simon’s solo record ‘Dream Crazy' which was co-written by Simon and Andrew and released by Epic Records in New York in 1986. It is still available to listen to on YouTube.

More recently in 2025, Simon collaborated with Colin Newell and together they wrote ‘Canadian World’. It was produced and arranged by Henry Marsh and subsequently covered and recorded by The Sandles.

Henry and Simon now write all their songs together under the banner of The Sandles.