These are good example starting points to expand upon:
(2) a summary of the piec

These are good example starting points to expand upon:
(2) a summary of the piece’s composers/performers/producers;
(3) a summary of its historical and musical context (what was happening in the world and in music around the time of its composition/production);
(4) a summary of its most important performing forces and musical characteristics;
(5) a listening guide of the composition;
(6) a conclusions slide that includes a bibliography of any secondary sources used.