The music shows sporadic / patchy control of music elements such as tones/sound/pitch, timbre, dynamics, or tempo. There is no discernable structure or organization of expressive features shown.

• 作品对音乐素材，例如声音/音高、音色、强弱、速度等的控制偶尔可辨，但未有可识别的结构或有组织的情感表达。