I mean like chords and sharps and flats.

我的意思是像和弦、升号和降号。

He convinced his father to buy him a chromatic harmonica – one that makes sharp and flat sounds.

他说服他的父亲给他买了一把半音阶口琴——一种发出尖锐和平坦声音的口琴。

Omnivore's like this bear, eat meat and plant matter, so they have a mixture of sharp and flat teeth.

杂食动物就像这只熊，吃肉和植物，所以它们的牙齿既锋利又扁平。

The noises that ascended through the pallid coverlid were perturbed lowings, mingled with human voices in sharps and flats, and the bark of a dog.

从苍白的床罩里传出的声音是不安的低吟声， 夹杂着人声的尖锐和降调， 以及狗的吠叫声。