DIPLOMATS OF SOLID SOUND What Goes Around Comes Around [Pravda] Iowa City’s Diplomats of Solid Sound have been plying their trade for more than a decade now, so they’ve been at it since the early days of the soul revival that currently is fully dialed up. The band’s first three records were purely instrumental; they expanded their membership and their scope in 2008 with the addition of a trio of vocalists dubbed “the Diplomettes.” Two of...