It is called twelve-tone technique, which is a form of serialism.
Chromatic
Notes that are altered from the traditional scale are called altered chords. These chords are defined on different scales, such as the chromatic scale, as being a diatonic note.
It contains 12 notes.
12. Every note in the chromatic scale is a half step from its consecutive notes.
chromatic
A chromatic scale is the scale using all the notes.
using notes of the chromatic scale-apex
Chromatic
Notes that are altered from the traditional scale are called altered chords. These chords are defined on different scales, such as the chromatic scale, as being a diatonic note.
It contains 12 notes.
The chromatic scale
12. Every note in the chromatic scale is a half step from its consecutive notes.
Austrian composer Arnold Schoenberg invented the chromatic scale. He made this invention in the year of 1921 and ensured all twelve notes were on the scale.
none of the above (apex): plain song, neoclassicism, romanticism
A "run" is a sequence of notes played rapidly (typically 16th notes or faster) in an ascending or descending pattern. A chromatic run would be one in which most of the notes are along the chromatic scale--in other words, half-steps.
chromatic
This would be a chromatic scale. In this scale, the octave is divided into semitones - twelve in total - and each semitone is played in succession.