Score and Parts. Gustav Mahler's epic symphonies are known for their grand scale and length. Often, these works employ expanded brass sections and fill concert halls with glorious sounds that rival the sonic output of any other composer. Movement IV from Symphony No. 5, the sublime Adagietto, challenges the listener to lean forward in one's seat in order to fully absorb the richness of the music. It is a movement for strings and harp that is often...