[2] Charles joined Walthamstow blues-rock band Sam Apple Pie, appearing on their eponymous first album in 1969, and then playing with Help Yourself at the first Glastonbury Festival in 1970.
[4] Malcolm Morley left Sam Apple Pie and invited Charles to join his new band Help Yourself, for whom he drummed on all 6 of their albums, and played an early synthesiser.
[3] After the breakup of Help Yourself in 1973, Charles recorded Unusual with Roger Ruskin Spear, Fish for Barry Melton and rejoined Tim Rose for Magician.
He drummed for, and recorded albums with, several Welsh bands, including Geraint Watkins, The Neutrons, Deke Leonard and Clive John.
By 1985 he was undertaking more engineering, including albums by Jeff Beck (Flash), The Fabulous Thunderbirds (Hot Number), Nick Lowe (Pinker and Prouder than Previous and Party of One) the Stray Cats and Nelson Rangell.