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Changes
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→Chromatic
For example, consider a modulation from C Major to A Harmonic Minor. C Major has a G note, while A Harmonic Minor has G{{s}} and A. This allows us to create a G - G{{s}} - A chromatic line through the following progression: G - E - A. That's ('''G''' B D) - (E '''G{{s}}''' B) - ('''A''' C E). If we follow good [[Voice Leading|voice leading]], we can keep the G, G{{s}}, and A notes in the same voice, thus getting the chromatic line. G is the V chord of C Major. E is the V chord of A Harmonic Minor. The progression could be written as:
G E Am G E Am C: V Ahm: V i C: V Ahm: V i E--3-------0-------0------ E------------------------- B--0-------0-------1------ B------------------------- '''G--0-------1-------2------''' '''G--0-------1-------2------''' D--0-------2-------2------ D--0-------2-------2------ A--2-------2-------0------ A--2-------2-------0------ E--3-------0-------------- E--3-------0--------------
<small>''Notice the chromatic line on the G string.''</small>
Here's another example, modulating from C to G, using a chromatic run on the high E string. Notice how seamless this sounds, especially with the chromatic line as the highest-pitched voice (soprano).
C F D G
C: I IV
G: V I
'''E--0----1----2----3'''
B--1----1----3----3
G--0----2----2----0
D--2----3----0----0
A--3--------------2
E-----------------3
Depending on the keys used, it may be more difficult to achieve the chromatic line with only the diatonic chords of the two keys. In these cases, we can resort to using a [[Borrowing Chords/Notes#Secondary Dominant|secondary dominant]] or some other non-diatonic chord.