Sprechstimme, a technique used by schoenberg and his contemporaries, literally means a. atonal. b. speech voice. c. springtime sound. d. irregular time.

B.

Explanation:

Sprechstimme is a German word referring to 'speech-voice.' It is an expressionist vocal technique and a combination of song and speech.

This technique was first used by Engelbert Humperdinck in his melodrama named Königskinder. But the credit for introducing this technique is given to Arnold Schoenberg. Arnold used this technique in Pierrot Lunaire in 1912.

So, the correct answer is option B.

variety in color and variety in texture