PERFORMANCE MATERIALS CURRENTLY AVAILABLE FOR USE IN ELEMENTARY SCHOOL MUSIC PROGRAMS DO NOT ADEQUATELY REPRESENT THE BODY OF SIGNIFICANT MUSIC WHICH IS A PART OF OUR CULTURAL HERITAGE. THE JUILLIARD REPERTORY PROJECT WAS ESTABLISHED TO FIND NEW MATERIALS, IN THE FORM OF GOOD MUSIC IN ITS ORIGINALLY COMPOSED STATE, SUITABLE FOR USE IN THE ELEMENTARY GRADES. EXPERT CONSULTANTS WERE ENGAGED TO COLLECT AND EVALUATE A GREAT QUANTITY OF INSTRUMENTAL AND VOCAL MUSIC FROM THE VARIOUS PERIODS OF MUSIC HISTORY (PRE-RENAISSANCE, RENAISSANCE, BAROQUE, CLASSICAL, ROMANTIC AND CONTEMPORARY) AND FROM THE INTERNATIONAL FOLK MUSIC REPERTORY OF ALL PERIODS. A PANEL OF MUSIC EDUCATORS REVIEWED THE SELECTIONS SUBMITTED BY THE CONSULTANTS AND RECOMMENDED CERTAIN ONES OF THEM FOR CLASSROOM TESTING. SEVEN DIVERSE PUBLIC SCHOOL SYSTEMS, EACH RECOGNIZED AS MAINTAINING A HIGH QUALITY OF MUSICAL INSTRUCTION, PARTICIPATED IN THE TESTING PROGRAM. EVALUATIONS OF TEACHER AND STUDENT RESPONSES TO THE TEST MATERIALS WERE SUBMITTED TO THE PROJECT STAFF. AN ANTHOLOGY OF WORKS SELECTED FROM THOSE TESTED IS TO BE PUBLISHED. INCLUDED IN THE PROJECT REPORT ARE (1) ACCOUNTS OF THE PROCEDURES EMPLOYED IN THE SELECTION OF SUITABLE WORKS FOR TESTING, (2) DESCRIPTIONS OF THE TESTING ENVIRONMENTS AND PROCEDURES, (3) EVALUATIVE REPORTS FROM PROJECT CONSULTANTS AND TESTERS, AND (4) A LIST OF THE MATERIALS PRODUCED BY THIS PROJECT. (JS)