Herbert Blomstedt has said he often likes to program a Mozart concerto with a Bruckner symphony because both composers are a product of the same Austrian musical matrix, influenced by the traditions of church, theater and folk culture – and because they combine “simplicity and sophistication”. Bruckner’s Symphony no. 4 in E flat major and Mozart’s Piano Concerto no. 17 in G major are even closer cousins, with birdsong providing crucial thematic material.
Blomstedt opted for a reduced orchestra for the Mozart and the same seating for the entire program. Cellos and second violins swapped places; the violas faced him, with winds and then brass behind. Trumpets, trombones and tuba were aligned along the back starting at the stage left corner, with the percussion at the middle of the wall. This created a chamber-like clarity, balance and transparency audible even in the denser symphony. Martin Helmchen took his cue from what Blomstedt elicited from the orchestra, playing with crystalline precision and phrasing in long breaths like a singer. At times he seemed to levitate from the bench as if buoyed by the intricate runs uncoiling from the keyboard. Though colors sparkled, he muted them slightly in the chatter between piano and woodwinds in the first movement and darkened them considerably in the more nocturnal second. Blomstedt’s tempi always gave the piano room to breath but never detracted from the overall ebullience. The variations on a folkish tune in the Allegretto – reminiscent of Papageno’s music, 43 years in the future – flowed in an exhilarating cascade of invention building up to the finale’s operatic Presto.