A Polish accent to L.A. Phil New Music Group's Green Umbrella program

Listeners may recall the unsettling string effects of Krzysztof Penderecki's 1961 "Polymorphia," featured in "The Exorcist" and "The Shining."

Nothing quite so hauntingly avant-garde turned up Tuesday at Walt Disney Concert Hall during the Green Umbrella series program, with 38-year-old Lukasz...