Ka tlase |

Katlase (ho tsoa ho Latin sub - under and dominante; French sousdominante, German Subdominante, Unterdominante) - lebitso la tekanyo ea IV ea sekala; thutong ea kutloano e boetse e bitsoa. chords e hahiloeng mohatong ona, le ts'ebetso e kopanyang chords IV, II, low II, VI mehato. C. e hlalosoa ka tlhaku S (letšoao lena, joaloka D le T, le hlahisitsoe ke X. Riemann). Boleng ba S. chords tsamaisong ea tonal-functional ea kutloano e khethoa ke mofuta oa kamano ea bona le tonic chord (T). Molumo oa Main S. ha o na tonic efe kapa efe. triad, kapa letotong la li-overtone tse tsoang ho tonic. pherekano ya modumo. Molumo o ka sehloohong T ke karolo ea C. chord le letotong le lecha-ho tloha tekanyong ea IV ea sekala. Ho ea ka Riemann, ho sisinyeha ha kutloano (ho tloha T) ho ea ho C. triad ho tšoana le phetoho e bohareng ba matla a khoheli (ka hona, C. e hula ka tlaase ho T ho feta D), e leng se hlokang ho matlafatsa tonality ena; ka hona kutloisiso ea S. e le "chord of conflict" (Riemann). Kenyelletso e latelang ea "D chord" e khutlisa bohale ba ho hohela ho T mme ka hona e matlafatsa molumo. Phetoho ea S - T, e se nang sebopeho sa ho khutla ho tloha nthong e nkiloeng ho ea ho ntho e hlahisang, ha e na maikutlo a matla joalo a ho phethahala ha li-harmonics. ntshetsopele, “finalization”, as a turnover D – T (sheba Plagal cadenza). Khopolo ea S. le lentsoe le lumellanang le ile la hlahisoa ke JF Rameau ("The New System of Music Theory", 1726, ch. 7), ea ileng a hlalosa S, D le T e le metheo e meraro ea mokhoa (mokhoa): " melumo e meraro ea motheo, to-rye e etsa kutloano, eo ho eona ba bonang qaleho ea khopolo e sebetsang ea li-haronics. tonality.

References: Rameau J. Ph., Nouveau systime de musique théorique…, P., 1726. Sheba hape le lit. tlas'a lihlooho tsa Harmony, Harmonic function, Sound System, Major Minor, Tonality.

Yu. N. Kholopov