PERMISSIBLE CHROMATIC MOVE
Folk style allows chromatic move in a very limited quantity
only in the modes "Rast", "Shur" and "Segah".
Chromatic scale in the mode "Rast"
1. Supertonic of the tonic quinte could be chromatically
lowered for a semitone, for example:
2. The tonic quinte could also be chromatically lowered
for a semitone, for example:
3. According to the orthography of chromatic gamma, example 204 is written
in this way:
Above-given chromatic moves in examples 203 and 204 refer
to the mode "Shur". The tonic of the latter is the second
degree of the tonic of the mode "Rast". It also refers to
the mode "Segah", the tonic of which is the third degree of
the tonic "Rast". In ascending direction chromatic scale is
not applied. The degrees of the remaining modes do not allow chromatic