received. L'affaire Ravel became a national scandal, leading to the early retirement of Dubois and his replacement by Fauré, appointed by the government to carry out a radical reorganisation of the Conservatoire. Among those taking a close interest in the controversy was Alfred Edwards, owner and editor of Le Matin, for which Lalo wrote. Edwards was married to Ravel's friend Misia; the couple took Ravel on a seven-week Rhine cruise on their yacht in June and July 1905, the first time he had travelled abroad. By the latter part of the 1900s Ravel had established a pattern of writing works for piano and subsequently arranging them for full orchestra. He was in general a slow and painstaking worker, and reworking his earlier piano compositions enabled him to increase the number of pieces published and performed. There appears to have been no mercenary motive for this; Ravel was known for his indifference to financial matters. The pieces that began as piano compositions and were then given orchestral dress were Pavane pour une infante défunte (orchestrated 1910), Une barque sur l'océan (1906, from the 1905 piano suite Miroirs), the Habanera section of Rapsodie espagnole (1907–08), Ma mère l'Oye (1908–10, orchestrated 1911), Valses nobles et sentimentales (1911, orchestrated 1912), Alborada del gracioso (from Miroirs, orchestrated 1918) and Le tombeau de Couperin (1914–17, orchestrated 1919). Ravel was not by inclination a teacher, but he gave lessons to a few young musicians he felt could benefit from them. Manuel Rosenthal was one, and records that Ravel was a very demanding teacher when he thought his pupil had talent. Like his own teacher, Fauré, he was concerned that his pupils should find their own individual voices and not be excessively influenced by established masters. He warned Rosenthal that it was impossible to learn from studying Debussy's music: "Only Debussy could have written it and made it sound like only Debussy can sound." When George Gershwin asked him for lessons in the 1920s, Ravel, after serious consideration, refused, on the grounds that they "would probably cause him to write bad Ravel and lose his great gift of melody and spontaneity". The best-known composer who studied with Ravel was probably Ralph Vaughan Williams, who was his pupil for three months in 1907–08. Vaughan Williams recalled that Ravel helped him escape from "the heavy contrapuntal Teutonic manner... Complexe mais pas compliqué was his motto." Vaughan Williams's recollections throw some