Hauv kev tshawb xav suab paj nruag, ib ntus yog qhov sib txawv ntawm ob lub suab. Ib lub sijhawm yuav raug piav qhia raws li kab rov tav, kab, lossis suab paj nruag yog hais txog kev ua suab nrov nrov, xws li ob lub suab nyob ib sab hauv suab paj nruag, thiab ntsug lossis sib haum xeeb yog tias nws cuam tshuam rau lub suab nrov ib txhij, xws li hauv chord.
Hauv Western suab paj nruag, ntu ntu feem ntau sib txawv ntawm cov ntawv sau ntawm diatonic scale. Qhov tsawg tshaj plaws ntawm cov ntu no yog semitone.
Cov ntu me dua ib lub semitone hu ua microtones. Lawv tuaj yeem tsim tau siv cov ntawv sau ntawm ntau yam uas tsis yog diatonic nplai.
Qee qhov tsawg tshaj plaws yog hu ua commas, thiab piav qhia txog qhov sib txawv me me, pom hauv qee qhov kev hloov kho, ntawm cov ntawv sau sib npaug xws li C thiab D.
Kev ncua sij hawm tuaj yeem ua rau me me, thiab txawm tias tsis pom zoo rau tib neeg pob ntseg. Hauv cov ntsiab lus ntawm lub cev, ib ntus yog qhov sib piv ntawm ob lub suab nrov zaus.
Piv txwv li, ob qho tib si sau ib octave sib nrug muaj qhov sib piv ntawm 2: 1.
Qhov no txhais tau hais tias kev nce qib ntawm lub suab los ntawm tib lub sijhawm ua rau muaj qhov nce ntxiv ntawm zaus, txawm tias tib neeg pob ntseg pom qhov no yog qhov nce hauv cov suab.
Vim li no, cov ntu feem ntau ntsuas hauv xees, ib chav tsev tau los ntawm lub logarithm ntawm qhov sib piv zaus.
Nyob rau hauv Western suab paj nruag txoj kev xav, feem ntau naming tswv yim rau ncua sij hawm piav txog ob yam khoom ntawm lub caij: qhov zoo (zoo meej, loj, me, augmented, diminished) thiab tus naj npawb (unison, thib ob, thib peb, thiab lwm yam).
Piv txwv suav nrog tus me thib peb lossis thib tsib zoo meej. Cov npe no piav qhia tsis yog qhov sib txawv ntawm semitones ntawm cov ntawv sau sab saud thiab sab saud, tab sis kuj yuav sau li cas lub caij nyoog.
Qhov tseem ceeb ntawm kev sau ntawv stems los ntawm keeb kwm kev coj ua ntawm kev sib txawv ntawm qhov sib txawv ntawm qhov sib txawv xws li GG thiab GA.
Kuv yog Joost Nusselder, tus tsim ntawm Neaera thiab tus neeg lag luam cov ntsiab lus, txiv, thiab nyiam sim cov cuab yeej tshiab nrog guitar ntawm lub siab ntawm kuv txoj kev mob siab rau, thiab ua ke nrog kuv pab neeg, Kuv tau tsim cov ntsiab lus ntawm blog txij li xyoo 2020. los pab cov neeg nyeem siab ncaj nrog cov ntaub ntawv kaw lus thiab cov lus qhia guitar.
