(music) Parts or pieces which are written both within the natural physical limitations of the instrument and human body and, less so or less often, the styles of playing used on specific instruments.
“One of the interesting things about Yoshi's English use was his use of idiomatic phrases and colloquial expressions.”
“The most casual parsing of the meaning of the terms in his announcement reveals that Aristotle was doing more than venting the metaphysical origins of his idiomatic approach to philosophizing.”
“It is an idiomatic language with a complex grammatical system that is considered rich in terms of warmth and expressiveness.”