Lovers of synth-pop, post-punk, and waves new, dark and cold, lend us your ears: Jacksonville’s own Glass Chapel have released their first new music in more than a year, the darkly romantic “Alive.”  The trio self-produced “Alive,” their first single since May 2023’s “Foreign Rain,” with mastering by Matthew Messore (Cathedral Bells, Midi Memory). Jake Phillips (vocals, guitar, synth, drum …