Remembered in his native Ireland primarily as a harpsichordist and interpreter of Bach's music, and in the UK as a conductor of the ground-shaking early music group Musica Reservata, John Beckett also composed avant-garde incidental music, performed on several instruments and was an authoritative, if controversial, conductor. Music was not his only passion: he was interested in films, the theatre, art and pottery, and loved to travel. Complex, self-deprecating and private, John's character and achievements are examined with detail garnered from information both published and in archival collections in Ireland and the UK.