Ob chav counterpoint |

Ob chav counterpoint yog qhov ntau yam ntawm vertically movable counterpoint; npog opposite permutations ntawm lub suab, raws li ib tug tshwm sim ntawm uas lub suab sab sauv yuav qis dua, thiab lub suab qis dua. D. to. yuav tsum tau ua raws li nyob rau hauv thawj kev sib txuas ntawm ob lub suab paj nruag nrog ib tug xov tooj ntawm kev txwv txiav txim los ntawm tag nrho cov nqi ntawm lub zog ntawm lub suab paj nruag, uas yog, nws thiaj li hu ua. qhov taw qhia ncua sij hawm. D. feem ntau yog siv rau. octaves, decims thiab duodecims. Kev txwv ntawm kev ywj pheej ntawm contrapuncture nyob rau hauv cov ntaub ntawv no yog tsawg heev. Yog nyob rau hauv kev xyaum wok. polyphony (lub npe hu ua nruj sau ntawv), ib qho kev nyiam yog muab rau D. rau. duodecima, ces nyob rau hauv contrapuntal. cov txheej txheem ntawm kev sau ntawv dawb, yos rov qab mus rau lub sijhawm thaum lub tonal system mus txog kev loj hlob, qhov tseem ceeb ntawm D. rau. octave yog qhov pom tau, uas khaws cov tonal kev sib koom ua ke ntawm ob lub suab nkauj hauv kev sib xyaw ua ke. Hauv pem teb 2. 19th caug xyoo ua ke nrog kev txaus siab rau xim, D. rau. decima thiab duodecima yog siv ntau dua, uas tso cai rau ntau hom kev duplication. Daim ntawv thov sib txawv. Lub sijhawm ntsuas D. to. vim kev hloov pauv ntawm txoj kev loj hlob ntawm cov suab paj nruag. thov-va tus cwj pwm rau qhov teeb meem ntawm consonance thiab dissonance.

AB Borodin. Quartet No 1, txav II.

References: Taneev SI, Movable counterpoint of nruj sau ntawv (1909), M., 1959; Skrebkov S., Phau ntawv ntawm polyphony, ntu 1-2, M., 1965; Grigoriev S. and Muller T., Textbook of polyphony, M., 1969; Bellermann JGH, Der Kontrapunkt, B., 1887; Marx J., Bayer F., Kontrapunktlehre (Regelbuch), W. – Lpz., 1944; Jeppesen K., Kontrapunkt, Nachdruck, Lpz., 1956.

TF Müller