Carillon defines a carillon as "A musical instrument composed of tuned bronze bells which are played from a baton keyboard. Only those carillons having at least 23 bells may be taken into consideration." The Guild of Carillonneurs in North America (GCNA) defines a carillon as "a musical instrument consisting of at least two octaves of carillon bells arranged in chromatic series and played from a keyboard permitting control of expression through variation of touch. A carillon bell is a cast bronze cup-shaped bell whose partial tones are in such harmonious relationship to each other as to permit many such bells to
A Sermon, a Narrative and a Prayer that each six-note set begins with the same note . For example, the first hexachord of the inverse form of the row has an interval succession of 11–4–10–1–3 semitones, plus an interval 7, wrapping around from the last back to the first note. By moving the first note in each hexachord to the end and then transposing the result to begin on E, the rotation scheme produces: Stravinsky then in many cases would travel systematically through the array to derive long melodic lines, as he does with this array to produce the canonic passage in the alto and tenor voices