Dab tsi chord yog nrov li lub ntsiab triads?

Xya chord

Nco qab tias a xya chord yog ib lub chord uas muaj plaub lub suab, nyob rau hauv uas lub sij hawm nruab nrab ntawm cov suab uas nyob ib sab ua ib feem peb. Lub sijhawm nruab nrab ntawm lub suab nrov yog xya, uas tsim lub npe ntawm chord.

Dominant xya chord

Muaj ntau ntau txoj kev xaiv rau lub xya chord. Qhov feem ntau yog lub xya chord, ua los ntawm qib tsib (hauv qhov loj lossis me me sib haum xeeb). Txij li thaum V kauj ruam yog hu ua "dominant", lub xya chord tsim los ntawm tus tseem ceeb yog hu ua hom xya chord. Lub chord yog qhia los ntawm tus lej 7. Piv txwv li: A7. Lub suab ntawm chord muaj cov npe hauv qab no (los ntawm hauv qab mus rau saum):

• Prima. Qhov no yog lub hauv paus ntawm chord, lub suab qis tshaj;
• Peb;
• Quint;
• Xya. Lub suab siab tshaj. Los ntawm prima mus rau xya - lub sij hawm ntawm "septim".

Qhov tseem ceeb thib xya chord muaj lub triad loj, uas ib feem peb tau ntxiv rau saum. Cov ntu nram qab no koom nrog (los ntawm prima mus rau xya): b.3, m.3, m.3. Daim duab hauv qab no qhia ob qho tseem ceeb xya chords: rau loj thiab me. Cov piv txwv tau muab rau cov yuam sij ntawm D-dur thiab H-moll, ua tib zoo saib xyuas qhov xwm txheej. Yog tias koj xav tau, koj tuaj yeem tsim qhov tseem ceeb thib xya chords koj tus kheej hauv C-dur thiab A-moll, uas twb dhau los ua rau peb.

Lub npe ntawm xya chords

Xya chords raug xaiv raws li hauv qab no: qib uas nws tau tsim yog qhia los ntawm Roman tus lej, tom qab ntawd tus lej 7 tau ntxiv (lub npe ntawm lub sijhawm "septim"). Piv txwv li, qhov tseem ceeb thib xya chord yog qhia raws li nram no: "V7" (V kauj ruam, 7 (septim)). Nco ntsoov tias feem ntau tus lej kauj ruam yog hloov los ntawm tsab ntawv teev npe ntawm daim ntawv. Piv txwv li, nyob rau hauv tus yuam sij ntawm C-dur, V kauj ruam yog daim ntawv G. Tom qab ntawd lub dominant xya chord nyob rau hauv tus yuam sij ntawm C-dur yuav denoted raws li nram no: G7.

Piv txwv rau D loj

Cov kauj ruam: D (I), E (II), F # (III), G (IV), A (V) , H (VI), C# (VII). Peb tau hu ua V kauj ruam, thiab los ntawm nws peb tsim ib qho tseem ceeb thib xya chord: los ntawm daim ntawv A peb tsim lub triad loj, thiab tom qab ntawd peb ntxiv ib qho me me los ntawm saum toj no. Koj tuaj yeem mloog lub suab ntawm chord los ntawm nyem rau ntawm daim duab:

Daim duab 1. Ib qho piv txwv ntawm ib qho tseem ceeb ntawm xya chord

Piv txwv rau H-moll

Cov kauj ruam: H(I), C#(II), D(III), E(IV), F# (V) , G(VI), A(VII). Tsis tas li ntawd xwb peb tsim ib tug chord: V degree – ceeb toom F#. Los ntawm nws peb tsim ib tug loj triad upwards, thiab ntxiv ib tug me thib peb nyob rau sab saum toj:

Daim duab 2. Ib qho piv txwv ntawm ib qho tseem ceeb ntawm xya chord

Inversions ntawm dominants ntawm xya chord

Lub chord muaj peb inversions. Cov npe ntawm cov invocations suav nrog lub sijhawm nruab nrab ntawm lub suab qis, lub hauv paus thiab sab saum toj. Ntawm no yog ib daim ntawv teev npe ntawm kev xa mus rau qhov tseem ceeb thib xya chord, los ntawm cov kauj ruam twg lawv tau tsim thiab lub sijhawm cuam tshuam dab tsi:

1. quintsextachchord ( ). Nws yog tsim rau theem 7. Qhov nruab nrab: m.3, m.3, b.2
2. peb lub quarter chord ( ). Nws yog tsim rau theem II. Qhov nruab nrab: m.3, b.2, b.3
3. thib ob chord (2). Nws yog tsim rau theem IV. Qhov nruab nrab: b.2, b.3, m.3

permissions

Txij li thaum muaj kev tsis sib haum xeeb nyob rau hauv lub thib xya chord tseem ceeb thiab nws cov inversions, cov chords no yog dissonant thiab xav tau kev daws teeb meem. Lawv raug txiav txim siab siv qhov system ntawm lub ntiajteb txawj nqus ntawm cov suab tsis ruaj khov rau hauv cov khoom ruaj khov. Ntxiv mus, yog tias qhov system no qhia tib qhov ruaj khov rau ob peb lub suab tsis ruaj khov, ces ob peb lub suab tsis ruaj khov raug daws rau hauv ib qho ruaj khov. Piv txwv li, qhov tseem ceeb thib xya chord (4 lub suab) raug daws rau hauv qhov tsis tiav triad (2 lub suab): II, V, VII cov kauj ruam tau daws rau hauv qib I:

Daim duab 3. Kev daws teeb meem ntawm qhov tseem ceeb ntawm xya chord

Dominant xya chord

(Koj tus browser yuav tsum txhawb flash)

tau

Koj tau paub nrog cov dominant xya chord , nws cov lus thov thiab kev tso cai.