Olivier Messiaen (1908-1992) is known for his unique composition style. Incorporating complex rhythms, harmony, melodies and his passion for ornithology, his Opera, St. Francis of Assisi, is no exception to the composer's popular, distinctive style. Composed between 1975-1983, St. Francis of Assisi displays the composer's devout Catholicism. The work is in three acts and eight scenes and both the music and libretto were written by Messiaen. St. Francis of Assisi incorporates Messiaen's popular compositional techniques, such as his modes of limited transposition, use of leitmotifs, use of birdsong and an instrumentation for a huge orchestra. This piece also makes use of the composer's synesthesia. St. Francis of Assisi is essential to all advanced Opera companies seeking to address a modern and varied performance work.

“French organist and composer, Marcel Dupré (1886-1971) is also remembered as a significant pedagogue. However, his prominence within the Organ repertoire remains absolute, with sublime works including his Prelude and Fugue in A flat major. Dupré studied at the Paris Conservatoire with Louis Vierne and Charles-Marie Widor, where he won prizes for Piano, Organ and fugue, as well as the Grand Prix de Rome. He was a famous Organ virtuoso and was able to perform the entire works composed for the instrument by J. S. Bach from memory. Dupré's Op. 36, No. 2, the Prelude and Fugue in A flat major for Organ was composed in 1938. The score begins with a helpful explanation of signs and abbreviations. The work displays contrast through tonality, rhythm, timbre and harmony, amongst other aspects. Dupré's compositions and didactic works remain important to organists today and his Prelude and Fugue in A flat major, suitable for advanced organists, is no exception. ”

Modern French composer, Alfred Desenclos (1912-1971) created exceptional works for a variety of instruments. Aria and Rondo for Double Bass and Piano, published in 1952, is no exception. Desenclos won the 1942 Prix de Rome following studies at the Conservatory in Roubaix. The composer's compositional style is highly expressive and atmospheric, with uses of extended technique. Aria and Rondo reflects these aspects, with a typical performance lasting about 12 minutes. For all advanced Double Bass players, Desenclos's Aria and Rondo is an exciting, alternative piece for the repertoire