Nick Cave has spoken about what to expect from the next Bad Seeds album, and if there’s a chance of more music from Grinderman any time soon.Earlier this year, the Australian musician was criticised by a fan for losing the anger that was present in much of his earlier work.In a post on his blog The Red Hand Files, Cave shared a note from the fan who asked: “When did you become a Hallmark card hippie? Joy, love, peace. Puke! Where’s the rage, anger, hatred?”In response, Cave said the death of his son Arthur was behind the shift in his energy. “Things changed after my first son died,” he wrote.