Elfonía was a Mexican experimental rock band with elements of progressive and ambient music.
[2] The band's line-up was extended in 2003 for purposes of a major music festival held in Monterrey, Mexico with Roberto Quintanilla on lead guitar, Pablo González on bass guitar, Javier Garagarza on drums with Jose Alberto Vidal Rodríguez performing vocals.
By the end of the year, Elfonía independently produced their self-titled first studio album which marked their breakthrough into mainstream music.
In November 2003, Marcela was invited by Arjen Anthony Lucassen to perform vocals on Ayreon's album The Human Equation.
[4] It was recorded at Caura Studio in Monterrey, Mexico and released independently by Marcela Bovio and Alejandro Millán.