 Various people have stated that Sorabji achieved compositional maturity with Three Pastiches for Piano (1922) and Le jardin parfumé: Poem for Piano Solo (1923), or with only the latter, but Sorabji himself regarded his First Organ Symphony (1924) as his first mature work. It is his first piece in which baroque organisational principles play an important role. The union of these and his earlier compositional ideas led to the emergence of what has been described as his "symphonic style", which provided the basis for most of his piano and organ symphonies. The first piece to apply the architectural blueprint of this style is his Fourth Piano Sonata (1928 – 29). It consists of three sections:
