I know somewhere there is a class that can have 3 archetypes at once. You can stack the magician and sound striker bard archetypes and take the spellsong feat in order to extend song duration with spell slots and extend spell duration with bardic music, and you may cast a highly damaging wizard spell (learned from magician) spell and play a damaging song (learned from song striker). Their are weirder combinations, but that one is weird and powerful.