Roots of Trey Gunn

La Barranca is a music group based in Mexico City. They are led by guitarist and songwriter José Manuel Aguilera, who previously and concurrently worked with Sangre Azteka, Jaguares, Cecilia Toussaint, Steven Brown/Nine Rain (Tuxedomoon), and more. After the original lineup—Aguilera, Federico Fong (bass), Alfonso Andre (drums), all of whom were guest members of Jaguares with former Caifanes frontman Saúl Hernández—went its separate ways, a second version of the band included Santa Sabina guitar virtuoso Alex Otaola and the rhythm section of brothers Jose María ("Chema") and Alonso Arreola. The band's sound moves from rock to fusion-ish jamming, with Mexican folk influence. On "El Fluir" the band decided to record live and to cut back on the keyboard and programmed additions to their music. "El Fluir" was their first US release since "Tempestad" in 1998. This edition was included a previously unreleased bonus track and a video for the first single "Pare de Sufrir".

Puscifer is an American rock group formed in Los Angeles by Maynard James Keenan, lead singer of Tool and A Perfect Circle. Initially Keenan was the only permanent member and he considered the project to be his "creative subconscious". Later, frequent collaborators Mat Mitchell and Carina Round became permanent members.

Carla Bissi, known professionally as Alice or Alice Visconti, is an Italian singer-songwriter and pianist who began her career in the early 1970s. After releasing three albums by the end of the decade, her breakthrough came in 1981 when she won the Sanremo Music Festival with the song "Per Elisa". This was followed by European hit singles like "Una notte speciale", "Messaggio", "Chan-son Egocentrique", "Prospettiva Nevski" and "Nomadi" and albums like Gioielli rubati, Park Hotel, Elisir, and Il sole nella pioggia which charted in Continental Europe, Scandinavia, and Japan.

Azam Ali is an Iranian musician. She has released music as a solo artist as well as with the bands VAS, Roseland, and Niyaz.