Liz Cooper, courtesy. Liz Cooper’s angsty punk anthem, mazie’s nostalgic sound, Chloe Lilac’s dreaminess, Jetta’s philosophical outlook, KROY’s manic energy and Dana Williams’ retro R&B make up our favorite songs of the week. Chloe Lilac, “Sick” — This biting new single appears on Chloe Lilac’s debut mixtape, when i feel…