"The last thing we wanted was verse-chorus, verse-chorus and all that. We messed with time signatures, tones, key changes," Tremonti tells MusicRadar. "Everything we could throw at these songs, we did. They have you never knowing what you're getting next."

Part of the process was refusing to take any arrangement for granted. "We didn't want to be easily satisfied," Tremonti says. "It's so tempting to say, 'That's it � it's perfect' the first time you have something.