The audio companion to David Toop's excellent book advances the case he made, that Les Baxter, Aphex Twin, The Beach Boys, Herbie Hancock, King Tubby and My Bloody Valentine are all related by their effect on sound pioneering. A double-disc set, Ocean of Sound impresses not only with its incredible diversity of musical styles, but with how easily these artists work next to each other. The second disc includes consecutive contributions by Paul Schütze, the Velvet Undergound, Holger Czukay of Can, The Beach Boys, African Headcharge and Sun Ra. Besides illustrating Toop's point beautifully, the album is an excellent addition to the collection of any wide-ranging ambient fan.

In addition to the traditional pairing of the Debussy and Ravel string quartets, the Arcanto Quartett performs Henri Dutilleux's Ainsi la Nuit (1971-1976), a grouping that is becoming increasingly popular on recordings. These are absolutely secure, thoughtful, self-effacing readings of the Debussy and the Ravel. While the quartet doesn't bring particular new revelations to the pieces, the members play with nuanced sensitivity and impeccable musicianship. The haunted quiet they achieve in the first part of the third movement of the Debussy is especially impressive, as is the clarity of their sense of direction and unity in the final movement, the most difficult of the four to pull off. Similarly in the Ravel, the contrast between the serenity of the third movement and the raw athleticism of the fourth is attention-grabbing and invigorating.

This stunning and generous collection belongs right at the top of the heap in its respective repertoire. The Debussy is still a comparative rarity in concert if not on disc, a remarkable fact given that it's wholly gorgeous from first note to last. Jean-Efflam Bavouzet's excellence as a Debussy pianist already has been acknowledged by just about everyone who has heard him, and needs no further advertisement here. The performance is outstanding, sensitive to every nuance, but also very French in its clear-eyed sensibility and understanding that focused rhythm and supple tempos prevent the music from turning excessively sentimental or blandly pretty. And in Tortelier, Bavouzet has a conductor who seconds him every step of the way. A similar sensibility informs these swift, razor-sharp, and utterly thrilling accounts of the two Ravel concertos. That for the left hand seldom has sounded so exciting, or in its jazzy central march section, so sinister. Listen to the bite that both soloist and orchestra bring to that descending scale theme, and notice the way Bavouzet shapes his cadenza so as to preserve the illusion of multiple parts played by multiple hands–all without slowing down at the tough passages. It's really an amazing performance by any standard. Even the dark opening, often merely murky on other recordings, has shape and urgency, the buildup to the initial entry of the piano creating incredible tension.

This fabulous five disc set is replete with some of those old Stokowski warhorses all recorded in absolutely mind boggling Phase 4 sound, overblown perhaps but astounding for its time. Decca's remastering is absolutely magnificent and the discs are jam packed with almost six hours of music. This is another fine memorial to a great conductor who remained astonishingly vital until the very end of his life.

French pianist Monique Haas recorded the piano works of Debussy and Ravel twice, once in the late '50s and early '60s for Deutsche Grammophon and again in the late '60s and early '70s for Erato. The later recordings are released here in this six disc set from Warner Classics. As on the earlier set, Haas' performances are elegantly stylish, technically impeccable, consummately musical, and quintessentially French. Pick any piece by either composer at random, and you'll see. Try her bright but sensual Suite Bergamasque with its ravishing Clair de lune or her brilliant and visionary Études with their astounding concluding Pour les accords. Or try her recklessly virtuosic Gaspard de la nuit with its frightening Scarbo or her sweetly swaying Valses nobles et sentimentales with its heartrending Épilogue. There are only two meaningful differences between Haas' recordings: in the earlier performance, she is more passionate and impetuous while in the later performances she is more measured and thoughtful.

Released between 1991 and 2005, the selections in The Warner Recordings encapsulate the period when Pierre-Laurent Aimard was signed to Erato and Teldec, performing mostly 20th-century fare and some music from the 19th century. Aimard is famous for his contributions to the modernist catalog, and his performances of works by Pierre Boulez, Elliott Carter, György Ligeti, and Olivier Messiaen are regarded as scrupulously executed and authoritatively interpreted. Aimard also recorded early 20th century pieces by Charles Ives, Alban Berg, Maurice Ravel, and Claude Debussy, as well as Romantic masterpieces of Beethoven and Liszt. A pianist's pianist, Aimard is well-rounded in his repertoire and a true master of keyboard technique, yet he has received considerably less fanfare than many of his flashier colleagues. Yet connoisseurs of piano recordings know that Aimard is indispensible, especially for his special feeling for French music, and his recordings are important documents that serious students and newcomers should appreciate.

With this disc, Vladimir Ashkenazy, celebrated for his readings of Rachmaninoff and Chopin, and his son, Vovka, take on music by Debussy and Ravel for two pianos, and the results, utterly unlike virtually anything Ashkenazy père has ever recorded before, make it a real winner. From the electric excitement of the opening En blanc et noir, through the hazy mysteries of Jeux, and the luminous colors of the Rapsodie espagnole, to the inexorable hysteria of La Valse, Ashkenazy père and fils turn in performances that match the music for poise, drive, and technical brilliance. Some might find their sonorities a bit hard-edged at points – should the opening of En blanc et noir and the close of La Valse really be hit so strongly? – but the results are so consistently thrilling that most listeners are likely to be swept away. Recorded in close but clear and vivid digital sound, this disc may not be for every Debussy and Ravel fan, but it should certainly appeal to fans of Ashkenazy.

This Pierian CD, advertised in the May 2012 Naxos catalog as an “also available” disc, is the label’s first issue from 2000 featuring the complete recordings of Debussy as pianist. All of his records were made in two sessions, a series of four short 78-rpm sides with soprano Mary Garden (his first Mélisande) at the Paris G&T studio in 1904 and 14 Welte-Mignon piano rolls recorded on November 11, 1913. Both are famous groups of recordings, restored and reissued over the decades, but this release is the best I’ve ever heard them.

In many ways, Debussy’s piano music finds its rightful home on the harp. Apart from the distinctive textural and colouristic elements in the writing itself, we have contemporary accounts of Debussy’s piano-playing that refer to his ability to make you forget a piano even had hammers. Of course, this doesn’t allow for dreamy, “impressionistic” interpretations; rather, it makes clarity and precision absolute imperatives – which qualities we find in abundance in this recital by Xavier de Maistre and friends.