330-331 is a review of the general characteristics of traditional musical practices from the previous three centuries. A perusal of these characteristics may prove beneficial in more aptly understanding the contrasts which occurred toward the end of the 19th century. Of all the areas of music which were affected by new trends, the very concept of tonality bore the brunt of the early forces of change. If one of the triads is altered to produce a different major or minor triad, but with the same letter names or enharmonic equivalents , a chromatic third relationship results. The root must be a M3 or m3 from the original root to constitute a third relationship.
Enharmonic spellings are possible.
Root movement by tritone may be used to create a sudden change in key orientation. See p. 337. Here, a harmonic sequence based on tritone relationships obscures the sense of tonality. Evasion of Tonic Traditionally, all other harmonies tend to gravitate around and toward tonic. In the Schumann example on pp.