Echoes of the Bach Sarabande from the Cello Suite No. 1 in G are heard in Gabriela Lena Frank’s Peruvian folk melodies and motifs in the Four Folksongs for Piano Trio. In the Suite Mestiza, a solo violinist gives playful and poignant voice to an Indian seller-woman at a mountain market. The world’s most prized seasoning takes center stage in Salt, UK composer Julian Grant’s madcap, modernized version of a Russian folktale. Commissioned by the Harvard Musical Association for Emmanuel Music’s 50th Anniversary, this highly entertaining chamber opera for four singers and piano trio receives its first public performance. Siblings argue, a princess is (willingly) abducted, too much alcohol is consumed, dangerous seas are plied, and - of course - a giant presides.