Contrary to the sparkle-and-shine of current Logic/Pro Tools recording-gloss readily available for independent bedroom artists, local singer-songwriter Kithera opts for a low(er)-fi production, to great effect, on “The sun could explode tomorrow and I’d still be asleep.” A two-chord ballad that’s just on the side of being in tune, the four-minutes of “The sun” sits squarely in the covenant of …