1831 Jan. 91 She has the strong sense, the quiet energy, the pure-toned feeling, the absence of affectation,..which would secure the highest esteem and admiration in real life.
1927 68 269/2 This happy body of choralists has established a well-merited reputation for balanced and pure-toned singing.
1993 Oct. 62/4 Surprisingly pure-toned for Debussy, her performance..is refreshing.