Lo and behold, Yo La Tengo have joined Bandcamp. Or at least one that’s being managed by their label Matador Records. To celebrate, the veteran indie outfit have dropped a five-minute new track that’s titled — breathe in, breathe out — “James and Ira demonstrate mysticism and some confusion holds (Monday)”. Why this spirited jam? What’s the story here? Allow Ira Kaplan to explain: “In late April, with the outside world weighing on everybody, we determined that the three of us could assemble in Hoboken without disobeying the rules laid out by Governor Murphy, and resumed . . . ‘practicing’ hardly describes it, because we’ve done no practicing per se, and anyway what would be practicing for . . . playing. James set up one microphone in the middle of the room in case we stumbled on something ...