Earlier this summer, Smith Westerns arrived at WFUV and The Alternate Side prepared to play an acoustic session of songs from Soft Will, an unplugged gesture that mirrored the subtle sonic adjustments that the rakish Chicago rockers have made since their 2009 debut. Not that the band's latest release, Soft Will, doesn't reverberate with a certain punkish bravado, but there's a grander maturity to Smith Westerns' taut songcraft these days.