The Haydn The Masses 7 CD Box Set, conducted by Sir David Willcocks and featuring renowned choirs such as St. John's College Choir and King's College Choir, is a collector's edition release from 1996 by the London record label. This limited edition set includes all the masses composed by Joseph Haydn, performed by the prestigious choirs under the direction of Simon Preston and George Guest. The box set showcases the timeless classical music of Haydn in a comprehensive collection, making it a must-have for any classical music enthusiast.