Born in Barcelona, the 4the of december of 1977, J21 started playing guitar at 10. Inspired by the great Frank Zappa, he started composing music at a very early age. At his 16th birthday, Frank Zappa died. This event marked J21’s life forever and Zappa’s music has ever since been the main inspiration in J21’s career. J21 has recorded over the years with such great artists as Reeves Gabrels (David Bowie, Tin Machine), Arthur Barrow (Zappa, The Doors), Ed Mann (Zappa), Graham Bonnet (Rainbow, MSG, Alcatrazz), Trey Gunn (King Crimson), Geoff Tyson (T-Ride, Snake River Conspiracy), etc.
In 2001, he organised the “Eyeinhand Project” to celebrate his admiration for Frank Zappa’s music. As a result, the “Eyeinhand CD” was released featuring music by Don Preston, Arthur Barrow, Mike Keneally, Thana Harris feat.Steve Vai, Scott Thunes and J21 himself. In 2008 he releases ”Yellow Mind, Blue Mind”,J21’s first solo album, and he is recording a new CD that will be released during 2010.