Mỹ Lai Kronos Quartet Smithsonian Folkways   In one of its most ambitious projects to date, Kronos Quartet has recorded Mỹ Lai, an opera by composer Jonathan Berger (Professor at Stanford University) and librettist Harriet Scott Chessman, who has also written a libretto for Georg Friedrich Haas’s next opera. Vocalist Rinde Eckerdt and multi-instrumentalist Vân-Ánh Vanessa Vo ̃ joined Kronos to create an East/West musical hybrid, with t’rưng, đàn bầu, and đàn tranh, traditional Vietnamese instruments, being added to the string quartet instrumentation.   The story of Mỹ Lai is one of brutality against civilians, over 500 killed by the