In many ways the most well-tempered of conductors, Wolfgang Sawallisch (1923-2013) brought a peerless orchestral transparency and beauty of line to the great German classics. Even the most overloaded Richard Strauss scores under his watchful eye and ear could sound, as the composer once said his opera Elektra should, “like fairy music by Mendelssohn”.

Orchestral volcanoes were erupting all over Europe around the year 1915. It was courageous enough to make a mountain chain out of three of them in a single concert. I was less prepared for the white-heat focus applied by that stalwart Dane Thomas Dausgaard, and completely flummoxed when he and Jian Wang, a cellist with the biggest yet most streamlined sound I’ve ever heard, made total sense of the only overblown monster on the programme, Bloch’s "Hebraic Rhapsody" Schelomo.

The Southbank Centre’s The Rest is Noise Festival has reached the American leg of its year-long tour through 20^th century music, and with it safe musical ground. In the second of three concerts with the LPO, American conductor Marin Alsop showcased the two equally appealing sides of America’s musical history: its cleanly-scrubbed, western classical face in Copland and Ives, and the grubbier, jazz-infused gestures of Joplin and Gershwin.

You don’t have to live under a totalitarian regime to write music of profound anguish. I was driven to argue the point at a Shostakovich symposium when an audience quizzer took issue with my assertion that Britten could go just as deep as the Russian. Much as the works of the two composers in this programme, Shostakovich’s Second Piano Concerto and Britten’s Spring Symphony, revealed their lighter sides to varying degrees, it was our anniversary composer who scored highest with his darker undercurrents.

“Work, more work and six foot of earth in the end. That’s life,” says John Rutherford. That single-minded work ethic is what drives him on and drives his family to despair and desertion. As head of the century-old family glassworks business going through hard times (the banks won’t lend money), he bullies his way out of a changing world that threatens his control (“I’ve a right to be obeyed”). But he has a messianic mission to preserve a dynastic destiny at all costs.

Last week Lulu, this week Cio-Cio San, next week the Vixen Bystrouška. These are the three exemplars of David Pountney’s “Free Spirits” – as he labels his first themed season with WNO. But it’s hard to see poor little Butterfly, pinned to a board by the cruel American sailor-lepidopterist, as a free anything. Like a trapped fly, Suzuki calls her; and if there’s a free spirit in Puccini’s opera, it might rather be Pinkerton himself, “dropping anchor at random,” as he boasts to Sharpless: not such an inspiring thought.

Genius does not mean having no influences. Monotones, one of the very greatest of Frederick Ashton's ballets, is heavily influenced by other works: by George Balanchine’s Theme and Variations and Apollo, by Marius Petipa’s La Bayadère. And it in turn has influenced other great works: Kenneth MacMillan’s searing Gloria would not exist without this unearthly, moon-calm vision.

As Julian Lloyd Webber combatively suggests of certain strands of 20^th-century music: “Let’s make a noise no one likes. If the audience likes it, you have failed as a composer.” In general, though, the first programme in this welcome three-part series is if anything too measured and respectful in guiding us through the labyrinths of 20th-century music – from Debussy to Richard Strauss (relatively easy on the ears) via the tougher, spikier Schoenberg and Webern.

The BBC has suddenly noticed that there used to be these really brilliant things called "albums", and now they're going out of style and out of date. Hence they're holding an Albums Season in all media (Danny Baker's Great Album Showdown, Steve Wright's Album Factoids, Johnny Walker's Long Players and many, many more). 

Travelling through Canada by train – more decades ago than I care to divulge here – I bought a book of Man Ray photographs at Banff in the heart of the Rockies. I spent the rest of the journey with one eye on the majestic mountains, and the other glued to the luminous, edgy, ineffably stylish images of the American surrealist in Paris.