Even in a catalogue as multifarious as Thomas', the carillon piece Ripple Effects stands out as a one-off. Commissioned by Rockefeller Chapel and devised in a number of versions, sculpted for carillons of three sizes, requiring varying numbers of players, the work is described by the composer as 'a labyrinth of musical interrelationships and connections' that increases in complexity as more and more players are added to this ever-expanding spider web of peals. Ultimately, the simultaneous sounding of all Rockefeller Chapel's 72 bells is the only logical conclusion! (Paul Pellay)