Each of the barred instruments was equipped with 13 pitched bars, arranged diatonically
from a lower C to a higher A, with no chromatic alterations.
This is analogous to creating a set of diatonic, not chromatic, flutes--piccolo, alto, tenor, and bass--while making sure that each size would blow without difficulty and that their diatonically
spaced finger-holes receive added holes where required, so that, for example, the bass could emit all scale notes that the piccolo possessed.
Instead, we have, in the solo ayres, tonal focus in short sections that function diatonically
but that do not fit into an overriding hierarchical system.
Richard Hermann also points out that the 048 trichord does not occur diatonically
, and hence implies a chromatic alteration to any conceptually prior diatonic collection.
Whereas both Sechter's theories and Bruckner's teaching were in essence diatonically
based, Schalk looks closely at chromaticism (stipulating that a key becomes more chromatic in direct proportion to its distance away from C major along the circle of fifths), leading notes, the different characters or colours of keys caused by differences in tuning (Wason reproduces Schalk's 'colour-equivalents' of keys), and the issues of just intonation and equal temperament.
And this is on an instrument whose acoustical and technical properties (sympathetic resonance, the diatonically
tuned open bass strings and the difficulty of fingering highly chromatic music) tend to impose a markedly unadventurous diatonic harmony, such as Wilson's French contemporaries, many of them well known in England, use almost without exception.
You can learn them separately in all keys, work on all kinds in one key or you can move a five note area diatonically
up a scale, starting with a major scale; e.
As Clark explains, "A single pitch can belong to many keys or harmonies that both diatonically
and chromatically related to the 'home' key (or main key of a section), and it can be the focal point around which the harmonies turn," thus "instead of presenting such themes in a key, " Schubert presents them "around a pitch" (p.
The chant moves diatonically
incorporating varied rhythmic patterns, much like the right hand accompaniment.