Sing / Sing a song / Sing out loud, sing out strong / Sing of good things, not bad / Sing of happy, not sad / Sing / Sing a song You can’t beat a free concert and one that lets you drink beer inside a church is always going to be a must-see. Running from 6pm until after 1am, 26 choirs from all over Berlin showcased fifteen minutes each from their repertoire on Friday night. Threatened with closure, it was the ninth “Long night of the choirs” event hosted by the Reformationskirche Moabit church, to make money for the church. It is now an established evening of choral music,…