SEATTLE — Among a certain group of Capitol Hill Block Partiers of yore, this year’s stacked comeback lineup of au courant alt-pop singers, rappers and electronic artists was met with a degree of befuddlement, triggering several existential questions: Who are these people? Are we really this old? Do kids still play guitars? Beyond the stable of talented Seattle bands, Block Party’s indie rock component has waned a bit, but hasn’t completely disappeared. Rather, such artists have instead packed the lineup of organizers’ newer festival, Day In Day Out, which returns to Seattle Center Aug. 12-14, …
