Music Theory for Computer Musicians

Root Movement by Seconds

Finally, there is root movement by seconds, in which the two triads have no notes in common. This kind of change offers the maximum possible contrast, although because the two chords share no notes, the connection is not so smooth (see Figure 18.8).

Figure 18.8. Root movement by seconds.

Focusing on these three types of root movement is a good way to expand your knowledge of chord progressions. Take a key and play the seven chords in all three orders—root movement by seconds, thirds, and fourths. This will assist you in getting to know the key, and it will probably give you inspiration for your chord progressions. ...