Within a definition, terms that are themselves defined in this glossary are printed in SMALL CAPITALS. Terms that are special to a narrow topic are explained in the text and are not included here, nor are terms that are defined in general dictionaries. Page numbers following the definitions refer to discussions in the text that concern the defined term.
Language abbreviations: Fr. = French; Ger. = German; Gr. = Greek; It. = Italian; Lat. = Latin; Port. = Portuguese; Sp. = Spanish. Also: sing. = singular; pl. = plural.
Abgesang See Bar form.
Accidental Sign that calls for altering the pitch of a note: raising it by a sharp, ♯; lowering it by a flat, ♭; or canceling a previous such sign by a "nat- ural," ♮ (pp. 53, 113).
Ad libitum (Lat. "at pleasure") Details of execution left to the discretion of the performer (p. 737).
Affection Fixed state of mind, such as rage, fear, or wonder, not unlike a persistent emotion (pp. 257, 431-32).
Aggregate Unordered set of the PITCH-CLASSES of the CHROMATIC SCALE (p. 769).
Agrément (Fr. "charm") ORNAMENT in French music, usually indicated by a sign (pp. 303, 354-55).
Air (1) Tune. (2) Tuneful song in a French stage work, usually in a dance METER (pp. 318, 385). (3) English or French art song with lute or viol accom- paniment (pp. 202-4, 218).
Air de cour French MONODIC song (pp. 197, 285).