"he began in a conversational tone"
"he spoke in a nervous tone of voice"

"the Beijing dialect uses four tones"

"the timbre of her soprano was rich and lovely"
"the muffled tones of the broken bell summoned them to meet"

"the feel of the city excited him"
"a clergyman improved the tone of the meeting"
"it had the smell of treason"

"after several trials he mixed the shade of pink that she wanted"

"the singer held the note too long"

"they tested his hearing with pure tones of different frequencies"

"the doctor tested my tonicity"

"the general tone of articles appearing in the newspapers is that the government should withdraw"
"from the tone of her behavior I gathered that I had outstayed my welcome"

"The students chanted the same slogan over and over again"

"tone a negative"

"tone a photographic image"

"Let's tone our muscles"