Seventh- and eighth-grade musicians at Robert Frost made some holiday magic on Dec. 10 and 11, offering a two-day series of winter concerts that displayed their growing mastery of their voices and instruments.

Ensembles in the spotlight included the orchestra, directed by Maria Wingert; the chorus, directed by Youngsun Koh-Lee and accompanied by Eunsuk Cho; and the band, directed by Michael Livorno.