There aren’t many musicians who could appear as composer, singer and violist on a single programme but that was Caroline Shaw’s lot last night.

The megastars are here at the Barbican, for an intensive three days in the case of the LA Phil and Gustavo Dudamel, throughout the season as the hall shines an "Artist Spotlight" on pianist Yuja Wang. Despite a shallow opener showcasing the individual talents of the Los Angeles principals and daft, rollicking Sousa at the end, there was a seriousness of intent and depth of focus that belied the touring glitz.

If you're going to run a music festival with flair, it's not enough just to have a run of star performers who pop up for single events. The 11th Wimbledon International Music Festival can offer those – Christian Tetzlaff and Lars Vogt, for instance, were there a week ago.

For better or worse, because of Visconti’s classic film the Adagietto of Mahler’s Fifth Symphony now inevitably means Venice in its gloomiest moods. So there turned out to be a grim timeliness in a performance on an evening that coincided with the most devastating “acqua alta” to flood the city in half a century. Yet, in keeping with everything he does with the London Philharmonia Orchestra, Vladimir Jurowski’s reading at the Royal Festival Hall made us think afresh about an iconic work and dispel its more hackneyed, reach-me-down associations.

Switch off for a phrase or two and it’s easy to miss the point in a Haydn symphony that makes each one of them odd and unique. In No. 74, played last night with understated class by the English Chamber Orchestra, that point occurs in the first movement, at the end of the second theme. All has gone just as you’d expect.

The Prague Symphony Orchestra are in town, their Cadogan Hall concert the London leg of a UK tour. It’s ambitious, including Mahler’s epic Third Symphony in five different cities, each with a local chorus. The orchestra itself, Prague’s second band, is a spirited and distinctively Central European ensemble.

So much was fresh and exciting about Michael Tilson Thomas's years as the London Symphony Orchestra's Principal Conductor (1988-1995; I don't go as far back as his debut, the 50th anniversary of which is celebrated this season).

The London Philharmonic’s Isle of Noises, a year-long festival dedicated to music of the British Isles, drew towards its close with this programme of Butterworth, Elgar and Walton. Marin Alsop was a good choice to lead, especially for Walton’s Belshazzar’s Feast. Although well-known for her performances of British music, she’s not one to wallow in pastoral whimsy.

Everyone’s doing Weinberg now, or so it seems. The Polish-born composer who became a close friend of Shostakovich was born 100 years ago, and there’s plenty of his music to go round.

Mozart’s piano concertos often overflow with good humour, but you seldom expect to hear a hearty chuckle from the audience in the middle of a performance of one. Yet something close to a guffaw burst out around King’s Place when soloist Tom Poster, deep into the last-movement cadenza of Mozart’s Piano Concerto No. 19 in F major, suddenly quoted Gershwin’s Rhapsody in Blue. Poster had played the Gershwin before the interval of this typically smart, eclectic and thought-provoking programme from the Aurora Orchestra under Nicholas Collon.