After putting a metaphorical bullet in the project’s jaded head five years ago, James Murphy found himself with plenty of time to kill in a post-LCD Soundsystem world. He went back to producing music, and found he was still good at that. He became something of a wine and coffee connoisseur, and found he was good at that too. But like many retirees he began to feel a void. And so an awkwardness was born — not unusual for Murphy — which left him with something of a conundrum: do you reform the band you supposedly buried forever and risk…