Manuel de Falla's Nights in the Gardens of Spain might have seemed a lightweight "concerto" for Steven Osborne, but how deftly the Scottish pianist dispensed shreds of Ravelian toccata through its first Iberian vista.
There was an effective tension between the APO and its rhapsodical soloist, saving Falla's music from descending into picture postcard territory or being a mere showcase for the admittedly gorgeous orchestral colourings.
Osborne's encore was perfection - a sentimental Ravel waltz, its wafting mysterious harmonies infused with an elegant intensity.
After interval, an orchestra of 104 players celebrated the centenary of Stravinsky's The Rite of Spring.
Two years ago, the APO presented a shattering account of this seminal ballet, with the city's youngsters dancing to Royston Maldoom's choreography. Now, we had the opportunity to submit to the power of Stravinsky's music alone.
Stier caught the spine-tingling tangle that spreads out from Ingrid Hagan's seductive bassoon introduction, and thrilled us with the tumult of the adolescents' pounding dance. There were quieter moments, exquisitely etched, calm, cool and collected; but the raw, energised fury of the final Sacrificial Dance made one realise why composer Pierre Boulez hailed this work as the birth certificate of contemporary music.