Kasey Chambers has spent her career turning insecurities into strengths. After leaving her family band to go solo in the late '90s, the Australian singer/songwriter imbued her country songs with painfully personal detail, cutting to the core on the lilting “Not Pretty Enough” and “The Captain.” The more she revealed, the more audiences loved her, and by the ‘00s she was branching out. “Barricades & Brickwalls” is rootsy rock that packs a wallop, while “Rattlin' Bones,” with former husband Shane Nicholson, adds twang and dust as their intertwined voices bring a bit of the Mississippi Delta to coastal Australia.