Laura MusselmanMark Arm, left, with Mudhoney at the Showbox at the Market.In addition to chatting us up about NPR and West Seattle this week, Mark Arm provided Reverb with the exclusive details about the next record from his seminal Seattle rock band, Mudhoney.Here’s what we know:SW: Are you writing Mudhoney songs?Arm: Yeah.Any idea when we’ll hear another Mudhoney record?No.Could it be this year?Hopefully.Is Sub Pop going to release the record?Fuck, I hope so. Or I quit!