Concrete Gardens is the eleventh studio album by guitarist Tony MacAlpine, released on April 21, 2015, through Sun Dog Records. The album was first announced by MacAlpine on his official website in October 2013, with more details in February and December 2014. An official release date was announced in March 2015, along with the cover art, different editions of the album, and a U.S. tour schedule. To further promote Concrete Gardens, a series of live studio performances of several songs were filmed for EMGtv, featuring guitarist Nili Brosh, drummer Aquiles Priester, and bassist Pete Griffin. Guitarist Jeff Loomis is featured as a guest soloist on "Square Circles".