When it comes to our grass­roots music venues, the news is usu­al­ly gloom cen­tral. So it gives me great plea­sure to report that a brand new venue is to open in Tot­ten­ham, north Lon­don, on 5th Sep­tem­ber. The new venue is called radi­al and is designed to serve the arts, music and cul­ture. And- acctually,…