Oliver Knussen composed this arresting 2-minute work for the Tanglewood Music Center, where he was Head of Contemporary Music from 1986 to 1993. Three groups of brass and percussion, spaced as widely apart as possible, riff on a fanfare for the 80th Birthday of Sir Michael Tippett, a deep “Seranak Chorale’ and the fanfare that announces the final scene of Knussen’s opera Higglety Piggelty Pop before joining together for an emphatic coda.