dissonance

"The child's loud, off-key singing was discordant with the rest of the choir's performance. "

"The combination of soft music and warm lighting created a relaxing atmosphere in the living room. "

"The children were excited to go to their classroom in the morning. "

"My need to sleep early is conflicting with my desire to finish this interesting book. "

"My family has a different ideal for my future than I do. "

"When the horn sounds, take cover."

"Go easy on him: he is but a child."

"Everyone in the class needs to bring their textbook to the first lecture. "

"The heavy rain was unexpected; we had planned a picnic in the park. "

"The rich sound of the cello included noticeable overtones, creating a warmer, fuller sound than a simple note. "

"The violinist was a master of her instrument."

"They had a bit of a disagreement about what color to paint the bedroom, but they have reached a compromise."