The London Symphony Orchestra's series arranged around Mozart's piano concertos is certainly highlighting the most acclaimed pianists in this repertoire. The latest is 75-year-old Alfred Brendel, who chose No 25 in C, K503. It's a big and bracing work, full of those ingenious touches that place Mozart's finest contributions right at the peak of the genre.

Brendel's pianism may have lost some of the perfect neatness of fingerwork and even some of the strong tonal focus that have long placed him at the head of his class, but in the central Andante, the limpidity of his tone and his ability to shape phrases remained huge assets. Elsewhere, the individual ideas could have done with more character, something largely absent from the bland accompaniments under conductor David Zinman.

The other work on the programme, Mahler's vast Ninth Symphony, usually viewed as one of his "farewells", is certainly not a piece for half-measures, and, even with the players on good form, this was a patchy account. Only in the aggressive Rondo, and especially the valedictory final Adagio, did Zinman gather the threads of the music up into something coherent and compelling.