Ivor is the founder and Music Director of the Trafalgar Sinfonia (formerly New London Soloists Orchestra), Ivor also directs the New London Singers, and Barts Choir, one of the City of London's largest cultural organisations. Ivor has conducted a number of leading orchestras including the Royal Philharmonic Orchestra, the London Mozart Players, the Royal Liverpool Philharmonic Orchestra, the Hanover Band and the City of London Sinfonia performing both orchestral and choral repertoire. He regularly performs at major London venues including the Royal Albert Hall and the South Bank. Highlights include performances of Elgar Dream of Gerontius, Verdi Requiem, Mahler Symphony No 2, Mahler Symphony No 8, Prokofiev Alexander Nevsky and Beethoven Symphony No 9 all at the Royal Albert Hall with the Royal Philharmonic Orchestra; Beethoven Eroica Symphony with Tippett A Child of Our Time at the Royal Festival Hall, and Beethoven Symphony No 5 at the Barbican Hall.
Ivor has conducted at venues across Europe including Estonia, Germany, Hungary, Sweden, the Netherlands, Czech Republic, Spain and extensively throughout Italy and France.
Ivor continues to appear on the concert platform as a countertenor most recently in the role of Didymus in Handel's oratorio Theodora for the St Martin-in-the-Fields Handel Festival.
In 2006 Ivor appeared in his own TV documentary series on Channel Five, The Singing Estate, which was nominated for the prestigious Rose d'Or award, and in 2008 he appeared in the BBC 2 TV programme Maestro as mentor to Drum & Bass DJ Goldie. In 2009 Ivor again mentored Goldie this time as he composed a classical piece on the theme of Evolution for the Family Prom and this composition journey was shown on BBC2. Other TV appearances include 10 Best Choral Masterpieces on BBC4, Richard & Judy, The Wright Show on Five and the BBC One Show.