Silverfish Trivia is an album by indie rock singer-songwriter Robert Pollard.
 It was released April 17, 2007 and is a 22-minute, seven-song mini-LP.
Mag Earwhig!
 is a 1997 album release by indie rock band Guided by Voices.
 Following the dissolution of the group's "classic" lineup, band-leader Robert Pollard recruited Cleveland group Cobra Verde as his backing band, while retaining the Guided by Voices name.
 Most of "Mag Earwhig!"
 was recorded in a professional studio in Cleveland by the new lineup and marked a departure from band's trademark lo-fi sound, although additional songs were subsequently recorded in Dayton, and former members played on several tracks.
Guided by Voices (often abbreviated as GBV) is an American indie rock band from Dayton, Ohio.
 It has made frequent personnel changes but always maintained the presence of principal songwriter Robert Pollard.
Our Cubehouse Still Rocks is the 4th album by the Boston Spaceships, released in 2010.
 The title refers to a passage from Finnegans Wake, the classic modernist novel by James Joyce.
 This album is the highest rating Boston Spaceships release on metacritic, superseding 'let it beard'; This releases is also the highest rating Robert Pollard project on the site, with his solo album, 'Lord Of The Birdcage,' being his highest rating album in general.
Scharpling and Wurster are a long-form radio comedy duo composed of Tom Scharpling and Jon Wurster.
 Scharpling was a writer/producer for the USA network program "Monk".
 Wurster is the drummer for indie rock pioneers Superchunk and was also the drummer in The Ascended Masters, Guided by Voices vocalist Robert Pollard's solo touring band.
 He is also currently the drummer for The Mountain Goats and Bob Mould.
Boston Spaceships was a rock band featuring Robert Pollard and Chris Slusarenko of Guided By Voices, and John Moen of The Decemberists and Perhapst.
 The name of the band came from a nickname Pollard gave to the Boston cream donut from Krispy Kreme, which is Pollard's favorite donut.
 The band released several albums before disbanding in 2011 with their final album "Let it Beard".
Elephant Jokes is the 12th studio album released by singer-songwriter Robert Pollard on August 11, 2009, and the 8th full-length album to be released by Pollard (along with several EP's and singles) since the break-up of his band Guided by Voices in 2004.
 Unlike recent Pollard albums, Todd Tobias does not play all the instruments on "Elephant Jokes", as Pollard plays some guitar on this album.
Circus Devils is an American psychedelic rock band founded in 2001 by Robert Pollard, best known as the lead singer and songwriter of the Dayton, Ohio, band Guided by Voices.
 The band consists of Pollard (vocals and lyrics), Todd Tobias (music and production), and Tim Tobias (music).
August by Cake is the 24th album by Dayton, Ohio group Guided by Voices.
 It is also the 100th album recorded by main member Robert Pollard.
 It was released April 7, 2017.
 "August by Cake" is also a double-disc album.
Kind of Like Spitting is an American indie rock band.
 They formed in 1996 in Portland, Oregon.
 The band is led by singer-songwriter Ben Barnett, whose work has drawn comparisons to Elliott Smith, Mark Eitzel, Billy Bragg, and Robert Pollard.

Question: What American indie rock band has Robert Pollard as a main member and released it's 24th album in April 2017?
Answer: Guided by Voices