Kuchepetsa nkhawa |

Mtundu wa symmetrical fret yotengera nyimbo yotsika (yocheperako yachisanu ndi chiwiri; chifukwa chake dzina).

Kapangidwe ka U. l. ikhoza kuyimiridwa ndi mitundu itatu, kutengera 3 Ch. mitundu yowonetsera zomveka zamachitidwe (cf. Kuchulukitsa): chordal, melodic, gulu. Chord U.l. yodziwika ndi kutsatizana kwa 4 chords (nthawi zambiri amakhala amtundu womwewo), osn. ma toni to-rykh amapanga mndandanda wotsika kwambiri. Za nyimbo za U. l. kawirikawiri melodic. mayendedwe enieni. sikelo yopangidwa mwa kugawa ma semitoni khumi ndi awiri a octave m'magawo anayi ofanana ndi ofanana mwadongosolo (mu semitones: 2+1, 2+1, 2+1, 2+1). Gulu U.l. yodziwika ndi kugwiritsa ntchito sikelo yeniyeni U. l. mu miyeso yosakanikirana, "diagonal" (yopingasa-yolunjika). Zitsanzo za U. l.:

Ndi Rimsky-Korsakov. "Sadko". Chithunzi 2.

Ngati Stravinsky. "Symphony of Psalms". Gawo 1.

Monga ma symmetrical frets, U. l. akhoza kumvera malo ake. chinthu (kuchepetsa chord chachisanu ndi chiwiri) monga chopatsa mphamvu mu omwazika (chiyambi cha chithunzi cha 2 cha "Sadko" ndi Rimsky-Korsakov) kapena mawonekedwe athunthu (onani chiwonetsero cha mvula yamkuntho kuchokera ku "Kashchei the Immortal" ndi Rimsky-Korsakov). Ntchito ya tonic ikhoza kukhala (malinga ndi chitsanzo cha fungulo la mtundu waukulu-waing'ono) pakati pawo. kamvekedwe ka mawu (“e” m’chitsanzo cha Stravinsky’s “Symphony of Psalms”) kapena kayimbidwe kake (onani kamvekedwe ka mawu “a” mu chitsanzo cha 8th sonata ya Scriabin, ndime 728).

Chifukwa cha kufanana kwachipangidwe cha 8-frequency-four-toni ndi tritone two-tone, kufanana kwa mitundu yomangidwa pa iwo kumawululidwa - U. l. ndi tritone. AH Scriabin. 5 piano sonata, mipiringidzo 8-XNUMX.

Mawu akuti "U. l." yopangidwa ndi BL Yavorsky (komabe, Yavorsky adayinena kuti idapangidwa ndi mawonekedwe okhala ndi malo okhala ngati malingaliro atatu, osati malingaliro achisanu ndi chiwiri). Onani "Sikelo ya Rimsky-Korsakov", mitundu ya Symmetric, mawonekedwe a Tritone, nyimbo ya Modal.

Zothandizira: onani pa Art. Zovuta za Symmetrical.

Yu. N. Kholopov