Fugue A. New tuning system that allowed instruments to play in all 12 keys Virtuoso B. Interweaving of melodic and harmonic elements in the musical fabric 3 Equal temperament C. Text or script of an opera 4 Medium D. Collection of dances 5 Texture E. Large-scale dramatic genre with sacred text solo voice, choir and orchestra: not staged or costumed 6 Opera F. Soloist set with an orchestra Aria G. Instrumentation (performing forces) of the musical work 8 Libretto H. Inversion, retrograde, augmentation 9 Oratorio I. Artist with remarkable technical skill 10 A-B-A J. Soloist singing a lyrical tune within an opera 11 Dance Suite K. Short , recurring instrumental passage 12 Concerto L. Instrumental music endowed with literary or pectoral associations 13 Program music M. Based on the principles of imitation 14 Contrapuntal devices N. Large-scale music drama that combines poetry, acting, scenery and costumes with singing and instrumental music 15 Ritornello O. Ternary form