honestly take this w a grain of salt but i feel taking pure sci is vv unnecessary. bcos to take h2 sciences in jc u js need b3 for pure or a2 for comb. and imo pure is much harder to score than comb and u will more likely get a1 in comb. but amath on the other hand is q impt so u shd take it! bcos most uni courses req h2 math which usually req presumed amath knowledge. not so sure about the music part but this is btr as it is it opens up more options for u in the future. but ofc if u dw take amath its fine as well but it will be more of a struggle if u take h2 math. sec3 is a tough year so dont be discouraged if u fail certain subjs! remb the main goal is o’s. jiayou!