In the complex, sinister world of Boston's Dresden Dolls, Brechtian punk, show tunes and decadent pop conflate to capture the confusion of mental illness. Singer and pianist Amanda Palmer sings frantic songs, teetering between intimate confession and disturbing disconnect, while Brian Viglione's drumming slams underneath. Occasionally guitars, bass and other strings join in, but mostly this duo handily creates waves of sound that match the toil in...