British, 406
improvisation, 17
harmonic, 392 , 394 , 406 , 434 –39, 452
as instrumental vocal accompaniment, 307
jazz and, 17 , 307 , 536
Lutheran cantus firmus and, 762
oral tradition and, 17 –18, 666 –67, 821
organists and, 437 , 607 , 617 , 781
ornamentation and, 783 , 821
polyphonic, 758
ricercari and, 606 –7
vernacular song and, 697
virtuoso fifteenth-century, 536 –41
Incarnation, 772 –73
“incomplete neighbor” (counterpoint), 430
India, Sigismondo d’, 818 –19
Piange, madonna, 819 –20
individualism, 548 , 549
Protestant Reformation and, 753 , 765 , 771
indulgences, 315 , 316 , 753
In ecclesiis benedicite Domino (G. Gabrieli), 783 –86
Infelix ego (Byrd), 679
Inferno (Dante), 803
In hydraulis (Busnoys), 456 –57, 495 , 500
In illo tempore loquente Jesu ad turbas (Gombert), 590 –93
Innocent III, Pope, 112
Innsbruck, ich muss dich lassen (Isaac), 759 , 760
inordinato, 724
Inquisition, 653 , 772
inscription. See written music
In seculum breve, 232
In seculum longum, 232
“In seculum” melisma, 222 –24, 227 –33, 229
textless pieces to, 229 –33, 233 , 424
In seculum viellatoris, 232 , 541
instrumental music, 534 –46
ars perfecta and, 606 , 617 –28
big band battle-pieces, 787 –89