It operated in southwest Portland's Morgan Building from 2021 to 2023, with John Conlin, and Wyatt VandenBerghe as chefs and Michael Branton as the sommelier.

[1] The menu included seafood,[2][3] Oregon produce,[4] goat with blueberries, eggplant, and Padrón peppers, as well as fig and cheese tarts, oysters, sourdough, and sherbet.

[1][5] Tercet also served: duck; caramelle pasta with celery and escargot; a whey sorbet; a chocolate torte with a coffee creme diplomat;[6] and goat sugo with tagliatelle, fig leaf oil and Parmesan.

[10] Lindsay Mattison included Tercet in Tasting Table's 2023 list of Portland's forty best restaurants.

[11] In Portland Monthly's overview of the city's "biggest restaurant moves" in 2023, Katherine Chew Hamilton said Tercet served "magical" dinners.