treble vs high-pitched

treble is a noun but high-pitched is not a noun.

Word	Noun	Adjective	Verb	Adverb
treble	Yes	Yes	Yes	No
high-pitched	No	Yes	No	No

treble (noun)	high-pitched (noun)
the pitch range of the highest female voice

treble (adjective)	high-pitched (adjective)
having or denoting a high range	used of sounds and voices; high in pitch or frequency
three times as great or many	set at a sharp or high angle or slant
having three units or components or elements
having more than one decidedly dissimilar aspects or qualities

treble (verb)	high-pitched (verb)
increase threefold
sing treble