For the third year, students from New Haven's Cooperative Arts and Humanities Magnet High School spent their winter break on campus honing their musical abilities at the School of Music. Called the "Winter Musical Immersion eXperience" (or Winter MIX), the program brought 11 singers and 17 instrumentalists from the city school to campus Feb. 15-18 for classes and rehearsals led by Yale graduate students, as well as presentations by faculty. The program, part of the School of Music's ongoing partnership with Coop High School, culminated in a joint concert with Yale musicians in Sprague Memorial Hall. T H I SW E E K ' SS T O R I E S Paul Mellon leaves Yale University $90 million for arts programs Schmoke named Senior Fellow of Yale Corporation The Cloak and Dagger World--Former CIA officials to take part in conference . . . Winter MIX Untangling 'historical jumble' about Jefferson no easy feat, say scholars William Kessen, renowned expert in child psychology, dies at age 74 Yale affiliates offering lectures and performance off-campus this week Yale Opera to perform Tchaikovsky's 'Iolanta' Law's relationship to low-wage workers to be explored Chemical engineer Altman receives Presidential Early Career Award Grant allows forestry students to work as interns across the nation 'ETHNY2K' conference will explore future directions of ethnic studies Sought: Reminiscences about Yale figures Robert Louis Jackson wins Humboldt Award

PHOTO BY MICHAEL MARSLAND  Yale graduate students gave area high school students lessons in voice last week.