 In addition to presenting Bastro as a noise rock power trio playing in constantly shifting time signatures, Grubbs also plays piano on one track, mixed in with guitar feedback, tape music and spoken word, and the album's title track "Guapo" features a discordant horn section.During this period Johnson was enrolled at Northwestern University in the Chicago suburb of Evanston, Illinois, and Grubbs also played in the band Bitch Magnet, resulting in a two year break before Bastro's second album, "Sing the Troubled Beast".The band's instrumentation became more diverse, including more piano, organ, and an excursion into musique concrète on the song "The Sifter".