CHROMATIC PASSING TONE
A chromatic passing tone fills the interval between two chord tones a major second apart and occurs in a weak rhythmic position.
FIGURE 8.5: Chromatic Passing Tone
Cross Relation occurs when a chromatically altered note in one voice is next to the same diatonic scale degree in a different voice. It should be avoided except when using the upper tetrachord of the melodic minor scale.
FIGURE 8.6: Cross Relation
DOUBLE PASSING TONE (melodic)
Double passing tones fill the interval of a perfect fourth between two chord tones and occur in a weak rhythmic position. In a minor key, the melodic minor scale is used for double passing tones over the tonic chord.
FIGURE 8.7: Double Passing Tone