Whittle's compositions were published by
Schott frères. They include: • Trio, Op. 11 (violin, cello and piano; 1949) •
Variations for Carillon, Op. 1 (1951) •
Woodwind Quintet (1951; won the Albert de Vleeschower prize)
Orchestra • Concerto for Piano (1948) • Variations on an Old Scottish Song (1952)
Piano • 24 Preludes, Op. 14 (1952) • Ballade, Op 15 (1949) • Berceuse, Op. 4 (1947) • Diurne, Op. 22 (1965) • Impromptu, Op. 27 (1966) • Intermezzi, Op. 32 •
Ondine, Op. 12 (1952) •
Scottish Dances, Op. 16 (1951) • Sonata, Op. 4 (1947) • Sonata, Op. 9 (1948) • Sonatine, Op. 30 (1967) • Two Nocturnes, Op. 6 (1967-68) • Two Small Pieces, Op. 25 (four hands; 1960) • Two Suites, Op 1 (1943)
Vocal • Christmas Carols, Op. 28 (chorus; 1966) • Missa brevis, Op. 2 (1944) •
Odelette, Op. 20 (mezzo-soprano, piano and orchestra; 1951) • Regina Coeli, Op. 17 (chorus; 1950) • Six Lieder, Op. 23 (1966) == References ==