Scalar transposition

Composers often transform musical patterns by moving every note in the pattern by a constant number of scale steps: thus, in the C major scale, the pattern C-D-E might be shifted up, or transposed, a single scale step to become D-E-F. This process is called "scalar transposition" and can often be found in musical sequences. Since the steps of a scale can have various sizes, this process introduces subtle melodic and harmonic variation into the music. This variation is what gives scalar music much of its complexity.