Sadie Gregg has been commended by the press as "a mezzo-soprano with a rich, flexible instrument," and as “a standout” whose "amber-toned mezzo-soprano sounded strong across her full range."

Performances include Seattle Opera, Portland Opera, Boston Lyric Opera, Odyssey Opera, Oregon Mahler Festival, Tualatin Valley Symphony, and Bravo! Concerts Northwest. Sadie is featured on the original recordings of The Emerald Tablet and Viva’s Holiday with Cult of Orpheus. In addition to performing, Sadie leads Opera on Tap Portland as a Managing Diva, and maintains a private vocal studio.

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