Ms. Gutiérrez sang the title role with pure intonation and a luxurious cushion of sound.

The blend of voices, the care in phrasing and the pure intonation served an unusually forceful approach to this music.

"I have never heard such pure intonation," Mr. Young wrote in liner notes to one of Mr. Nath's albums.

The collective result is a purer intonation, intervals that shine because they are not prodded up or down to fit the needs of diatonic harmony.

The ensemble's pure intonation was a joy, and so was its homogeneity of tone.

All the solos out of the orchestra glowed with pure intonation and symmetry of phrase.

He is a lyric tenor who uses his attractive voice wisely and communicates poetic texts with clarity and pure intonation.

Ensemble Gombert is a chamber choir based in Melbourne, Australia noted for its pure intonation and historic approach to choral sound and style.

Ms. Piau's performance borders on the superhuman, with pure intonation and flawless runs.

The wind soloists' meltingly pure intonation was one; the hesitational accents from every part of the orchestra, unanimously felt, were speechlike in their eloquence.