“Had a panic attack in a park last year in Nottingham - and that wasn't great really” reveals Mancunian spoken-word poet Antony Szmierek, on his brilliant second album, Decoding Birdsong. Given this, you would forgive the former teacher for wanting to avoid our city for a little while. However rather than running away from his demons, Antony returned this past week to fully exorcise them. Here’s what went down at his euphoric, cathartic and instantly legendary show at The Level…