At 77 years young, Danish composer Poul Ruders continues to delight and surprise with a seemingly endless flow of masterworks. He can be gloriously, explosively extrovert one minute, withdrawn, haunted, and intently inward-looking the next. Super-abundant high spirits alternate with pained, almost expressionistic lyricism; simplicity and directness with astringent irony, all of which can be heard in this program of three new concertos for three very old instruments.