Big Black Delta is the one-man electro-pop outfit of Jonathan Bates. Bates, formerly of LA band Mellowdrone, was also once a Boston guy too. Having lived in Brighton and studied at Berklee, the bassist worked his way out to the West Coast and more recently began recording music as a solo act. This year, he released his eponymous full-length to favorable reviews, and now he will be making a stop at Church of Boston on Thursday with Superhumanoids…