Parallel Chords [UPDATED]
Often called "parallel motion" or "constant structure harmony," this technique occurs when all voices in a chord move up or down by the same interval.
A parallel key is a scale that shares the same tonic note as your current key but has a different quality (major vs. minor). For example, and C Minor are parallel keys. Elevate your compositions with Parallel Harmony! Parallel Chords
: If you take a C major chord (C-E-G) and move every note up a whole step to D major (D-F#-A), you have created a parallel progression. you have created a parallel progression.