O

Obizzi, Pio Enea degli, 67 -69, 70 , 89 , 393 n.

See also Ermiona ; Ivanovich

Odyssey. See Homer

Offenbach, Jacques, 404 .

See also Orfeo

Olimpia vendicata , 178 n.

See also Ariosto; Aureli; Invention

Ombra scenes. See Invocation

Opera: didactic value of, 56 -59, 150 -53;

as dramma per musica , 65 -66, 75 n;

economic considerations, 195 -97;

as a genre, 9 , 34 -36, 65 , 155 , 185 ;

literary ancestors of, 10 , 14 , 36 , 52 , 323 -24;

political function of, in Venice, 11 , 90 , 109 , 124 , 125 ;

reform of, 3 , 275 -77, 280 , 395 -401;

as a term, 35 -36, 75 n.

See also Florence; Mantua: opera in; Naples; Rome

Opera companies: traveling, 2 -3, 14 , 81 , 98 , 110 -11, 186 ;

in Venice, 14 , 67 , 69 -75, 78 , 80 , 91 , 180 , 221 .

See also Accademici Febiarmonici

Opera houses. See Theaters

Orazio , 398 n. See also Giovanni Grimani

Orchestration, 7 , 24 -25, 218 n;

strings, 292 , 296 , 324 , 331 , 376 -77, 381 ;

style in mad scenes, 352 , 356 ;

trumpet, 329 -32

Orfeo (Aureli and Sartorio): aesthetic commentary in, 178 n, 387 -90, 395 ;

Calzabigi and Gluck, 343 , 388 ;

Monteverdi and Rinuccini, 4 , 10 , 11 n, 15 , 18 , 24 , 25 , 54 ;

and Poppea compared, 19 -22;

singers of, 226 , 227 , 235ⁿ , 240 n;

text and music, 247 , 289 n, 294 n, 296 n, 308 , 321 n, 326 n, 327 , 329 , 333 , 334 , 341 -42, 343 n, 379 n, 522-23, 545 -47, 547 -48, 551 -54.

See also Aureli; Calzabigi; Gluck; Claudio Monteverdi; Rinuccini; Sartorio

Orfeo a torto geloso , 390 .

See also Orfeo

Orfeo, La fabula d ', 388 n

Orfeo o sia Amore spesso inganna , 390 .

See also Orfeo

Orimonte , 168 n, 176 , 177 , 201 n.

See also Cavalli; Minato

Orione , 223 .

See also Cavalli; Melosio

Oristeo , 170 , 174 , 180 , 193 , 284 n, 324 n.

See also Cavalli; Giovanni Faustini; Marco Faustini

Orlando , 330

Orlando furioso , 351 , 361 .

See also Ariosto; Madness

Ormindo , 170 n, 194 ;

and Erismena , 157 , 202 ;

prologue, 138 , 156 ;

text and music, 261 -67, 291 n, 296 -98, 303 n, 304 n, 472-85, 509 -11

Ornamentation, vocal, 20 , 321

Oronte , 146 .

See also Giacomo Castoreo

Orontea , 157 n, 183 n, 192 , 217 , 272 n, 379 n, 589-90 ;

as pasticcio, 220 ;

revival, 217 n, 234 , 401 n, 402 , 403 .

See also Giacinto Andrea Cicognini; Lucio

Orpheus, myth of, 387 -89

Orpheus as operatic hero, 247 -48, 387 -90, 404

Ostinato (descending tetrachord), 267 , 324 , 369 -70, 372 -77, 378 -84, 649-50.

See also Lament

Ottonelli, Giovan Domenico, 11 , 14 , 72 , 86 , 89

Ovid, 59 , 176 , 361 , 387 n