Guy Protheroe began his musical education as a chorister at Canterbury Cathedral, and continued with music scholarships to St Edward's School and Magdalen College , Oxford . He became conductor and musical director of the English Chamber Choir soon after its formation in 1972, and has brought to it a wealth of experience from his work in other areas of the music industry. On leaving Oxford he also founded the contemporary music ensemble Spectrum, which toured extensively in the UK , Europe and the USA , and collected recording awards for its CDs of music by Jonathan Harvey and Xenakis. Its staged performances of Xenakis' Oresteia , presented by the English Bach Festival Trust, opened the Linbury Studio theatre at the Royal Opera House, Covent Garden . He worked for many years as arranger and musical director for Vangelis Papathanassiou (of Chariots of Fire fame) and has collaborated with the French composer Eric Levi on the series of Era albums, which although not available in the UK , have sold many millions of copies worldwide. As well as conducting, he is in demand as a singer, arranger and an expert adviser and witness on issues relating to music copyright and plagiarism.