The primary feature of modal jazz is Blank being used for a long period of time. Each chord is derived from a mode, or scale. Many modal compositions featured one chord for 8 to 16 measures.

Chord

Explanation:

The primary feature of modal jazz is chord being used for a long period of time. Each chord is derived from a mode, or scale. Many modal compositions featured one chord for 8 to 16 measures.

sorry to hear, it's probably frustrating sometimes

a chromatic scale uses the twelve tones of the octave, while a regular scale only uses eight, or seven different notes (as the first note is played twice)