Assertion: sequence | /r/HasProperty | defined
Facets:
value: according to its direction
type: OTHER
Source sentences:
text: The Start on field automatically defaults to the current date, and once a sequence is defined, the start date cannot be changed.
text: A sequence can be described according to its direction (ascending or descending in pitch) and its adherence to the diatonic scale—that is, the sequence is diatonic if the pitches remain within the scale, or chromatic (or non-diatonic) if pitches outside of the diatonic scale are used and especially if all pitches are shifted by exactly the same interval (i.e., they are transposed).
text: Once a sequence is defined, the message choice cannot be changed.
text: Once a sequence is defined, this initial value cannot be changed.