What American indie rock band has Robert Pollard as a main member and released it's 24th album in April 2017?
August by Cake: August by Cake is the 24th album by Dayton, Ohio group Guided by Voices. August by Cake:  It was released April 7, 2017. Guided by Voices: Guided by Voices (often abbreviated as GBV) is an American indie rock band from Dayton, Ohio. Guided by Voices:  It has made frequent personnel changes but always maintained the presence of principal songwriter Robert Pollard.
Guided by Voices