What is the author's tone in Wine in the Wilderness by Alice Childress?

The contrast in the speech patterns of the less educated characters with that of the more educated characters is a significant element of the tone and dialogue in this play. The three middle-class characters, Bill, Cynthia, and Sonny-man, demonstrate their higher level of education through their use of vocabulary and their speech patterns. Tommy and Oldtimer, who are not well-educated, have somewhat different vocabulary and speech patterns.