Settled. In an interview and session with the Sun ( http://www.thesun.co.uk/sol/homepage/showbiz/bizarre/bizsessions/2514009/The-Gaslight-Anthem-play-acoustic-Biz-Session-covering-Hallelujah.html ) Brian says "I write pretty much everything on an acoustic guitar, although occasionally on a piano." it would be good if he brought that into some TGA songs.