16/05/2025
When discussing "family chords," we're often referring to the diatonic chords built from the notes of a specific key. These chords work well together because they share notes from the same scale, creating a harmonious sound. Here's an explanation of family chords and how to transpose them:
1. Family Chords in a Key
In any major key, the family chords are derived from the major scale. The chords follow this pattern:
- I (Tonic): Major
- ii (Supertonic): Minor
- iii (Mediant): Minor
- IV (Subdominant): Major
- V (Dominant): Major (or dominant 7th)
- vi (Submediant): Minor
- vii° (Leading Tone): Diminished
For example, in the key of C Major:
- I = C
- ii = Dm
- iii = Em
- IV = F
- V = G
- vi = Am
- vii° = B°
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2. Transposing Family Chords
To transpose these chords to a different key, follow the same pattern but start from the new root note (I). For instance:
Example: Transposing from C Major to G Major
The G major scale is: G, A, B, C, D, E, F #
- I = G (Major)
- ii = Am (Minor)
- iii = Bm (Minor)
- IV = C (Major)
- V = D (Major)
- vi = Em (Minor)
- vii° = F #°
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3. Application in Minor Keys
The same concept applies to minor keys, but the chords are slightly different:
- i: Minor
- ii°: Diminished
- III: Major
- iv: Minor
- v (or V): Minor (or Major)
- VI: Major
- VII:Major (or Dominant)
For example, in A Minor:
- i = Am
- ii° = B°
- III = C
- iv = Dm
- v = Em (or E)
- VI = F
- VII = G (or G7)
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Why is this Useful?
Understanding family chords helps with:
- Songwriting: Creating progressions that sound good naturally.
- Improvisation: Knowing which chords fit in a given key.
- Transposing: Quickly changing a song to suit a different vocal range.
specific example of transposing a chord progression:
Example 1:
- Original Key: C Major
- Chord Progression: C - Am - F - G
- New Key:G Major
Steps to Transpose:
1. Identify the scale degrees of the original chords in C Major:
- C = I
- Am = vi
- F = IV
- G = V
2. Use the same scale degrees to find the corresponding chords in G Major:
- I = G
- vi = Em
- IV = C
- V = D
3. The transposed progression in G Major is:
G - Em - C - D
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Example 2:
- Original Key:A Minor
- Chord Progression: Am - F - C - G
- New Key: E Minor
Steps to Transpose:
1. Identify the scale degrees of the original chords in A Minor:
- Am = i
- F = VI
- C = III
- G = VII
2. Use the same scale degrees to find the corresponding chords in E Minor:
- i = Em
- VI = C
- III = G
- VII = D
3. The transposed progression in E Minor is:
Em - C - G - D
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