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Attaching chords to a melody
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how do i know when to play the chords and how often?
The answer is in the question. You don't know it but you choose it,
and there are almost infinite number of choices.
I will try to give examples, simple yet effective.
Assume you are in the C scale or C key as some people call it.
Let's remember the C scale: (*when not written, default is major)
C major scale - C1,D1,E1,F1,G1,A1,B1,C2
C1,one,D1,one,E1,half,F1,one,G1,one,A1,one,B1,half ,C2
And
Natural chords of C major scale 1-3-5
- C.......C1-E1-G1......2/1.5 Major
- Dm.... D1-F1-A1......1.5/2 Minor
- Em.... E1-G1-B1......1.5/2 Minor
- F.......F1-A1-C2......2/1.5 Major
- G...... G1-B1-R2......2/1.5 Major
- Am.... A1-C2-E2......1.5/2 Minor
- B-..... B1-D2-F2......1.5/1.5 Diminished (I guess)
(* rule of thumb don't use B-; It does not sound nice,
however, a master can make it sound nice with pre or/and post chords)
I will drop the no.s since in fact E1= E2....=En
Assume we have a melody as given below
(1)-----(2)-----(3)-----(4)-----(1)-----(2)-----(3)-----(4)-----(1)-----(2)-----(3)-----(4)----- Time
(E)--------------------------->(E)-(D)-(B)-(G)-(A)------------>(G)-(A)-(B)-------->(A)-------> Melody
Which chords have (E) in common ? C, Em, Am ; you can choose one or more of them (not at the same time, of course)
(D)(B)(G) -> A perfect G major chord: You can use use it for the whole duration
Which chords have (A) in common ? Dm, F, Am ;
Which chords have (G) in common ? C,Em, G ;
Which chords have (B) in common ? Em, G ; we have left B-. out
My choice: Two chords Am and G
(1)-----(2)-----(3)-----(4)-----(1)-----(2)-----(3)-----(4)-----(1)-----(2)-----(3)-----(4)----- Time
(E)--------------------------->(E)-(D)-(B)-(G)-(A)------------>(G)-(A)-(B)-------->(A)-------> Melody
Am---------------------------------G----------Am--------------G------------------Am-------> (1) *(G)(A)(B) is given G chord, skippin' (A)
Am----------AmAm---------Am------G------G--Am---------Am--G-------G------G---Am-------> (2)
Em----------EmAm---------C--------G------G--Dm---------Am--C-------Em-----G---Dm------> (3) Same as (2) with different chords
seLimmm
*it is not possible to write something in tabular form with this font