Voices of Singapore is set to present a concert of Mahler and Bernstein on July 13 in the Esplanade Concert Hall. Taiwan-born conductor Lü Shao-Chia returns to conduct Orchestra of the Music Makers in a program consisting of Mahler’s Symphony No. 6 “Tragic” in A minor and Bernstein’s “Chichester Psalms.” Voices of Singapore under the direction of choir master Chong {…}