 Complete the following phrase:  By late 1993, Caifanes became a three piece with the exit of Romo and Herrera. Federico Fong filled in on bass and Yann Zaragoza played keyboards. 1994s El nervio del volcán The Volcanos Nerve, released by BMG, showed Caifanes with a heavier, more progressive sound. Without the distractions of Romos lively and fluid bass playing or Herreras atmospheric keyboards, Marcovichs staccato guitar work, Alfonsos polyrythmic drumming, and Herdezs brooding and haunting vocal style became even more prominent. Afuera Outside, the first single, fused rock grooves with an ethnic-inspired guitar solo. Aquí No Es Así Here Is Not Like That , and Ayer Me Dijo Un Ave Yesterday a Bird said to me... became radio favorites. Aquí No Es Así achieved great success in Mexico and several countries of Latin-America, it became the last massive hit of the band, shortly before their breakup, and its music video, directed by Carlos Marcovich Alejandros brother, who also directed Afuera tells the history of the 