IN: Steven Siro Vai (; born June 6, 1960) is an American guitarist, composer, singer, songwriter, and producer. He was voted the "10th Greatest Guitarist" by Guitar World magazine, and has sold over 15 million records. A three-time Grammy Award winner and fifteen-time nominee, Vai started his music career in 1978 at the age of 18 as a transcriptionist for Frank Zappa, and joined his band from 1980 to 1983. He embarked on a solo career in 1983 and has released eight solo albums to date.

In 1978, Vai sent both a notated transcription of Frank Zappa's "The Black Page", and a recording of his college band, Morning Thunder, to Zappa. Impressed by this, Zappa responded by putting Vai on salary as a transcriptionist to transcribe his work, which included pieces from the Joe's Garage and Shut Up 'n Play Yer Guitar albums. After leaving Berklee College of Music and moving to California, Vai auditioned for and became a full-time member of Zappa's band, going on his first tour with Zappa in the fall of 1980. Zappa often referred to Vai as his "little Italian virtuoso", and Vai is frequently listed in the liner notes of Zappa's albums as having performed "stunt" or "impossible" guitar parts. Vai was a featured artist on the 1993 release Zappa's Universe, and in 2006, Vai appeared as a special guest on Dweezil Zappa's Zappa Plays Zappa tour; both projects won Vai a Grammy Award. After moving on from Zappa's employ in 1983, Vai bought a house in Sylmar, Los Angeles, where he built his first professional studio. During this period, Vai formed two bands (The Classified and 777) as well as writing and recording a large amount of music that was not originally intended for release. Out of this material, Vai compiled his first studio album Flex-Able. He created his own record label, Akashic Records (later Light Without Heat Records), which he used to take Flex-Able directly to distribution channels. Flex-Able was released in January 1984. Vai began his rise to public acclaim in 1983 when, shortly before the release of Flex-Able, his composition "The Attitude Song" was published in Guitar Player magazine. The song centered itself on a main guitar riff in the time signature 7/16, played over a rhythm section centered in 4/4. Each following section of the song showcased a number of specialized techniques (such as two-handed tapping, whammy bar acrobatics, sweep picking, alternate picking, multi-part harmonies, and odd phrasing) used in angular and exaggerated ways that were unique to the song at the time. Interest from the public eye grew more so when Vai's song "Blue Powder" (a demonstration for the Carvin X100b amplifier) was published in Guitar Player as well, which showed the virtuoso side of Vai's compositional process. Also in 1986, Vai was cast in the blockbuster film Crossroads as the Devil's guitar player "Jack Butler". In the famous "duel scene" between Vai and Ralph Macchio's characters, Vai wrote and performed all guitar parts with the exception of the slide guitar, which was performed by Ry Cooder. In between solo work, Vai replaced Yngwie Malmsteen in June 1984 as the lead guitarist of Alcatrazz, with whom he recorded the album Disturbing the Peace. Vai left shortly after the subsequent tour to join David Lee Roth's band.

What did he do after playing for Zappa?

OUT: he built his first professional studio.

IN: Earth Crisis is an American metalcore band from Syracuse, New York, active from 1989 until 2001, reuniting in 2007. Since 1993 the band's longest serving members are vocalist Karl Buechner, guitarist Scott Crouse, bassist Ian Edwards and drummer Dennis Merrick. Their third guitarist Erick Edwards joined the band in 1998. The band has released eight studio albums, three compilations, two live albums and six music videos.

Although ideologically tied to the straight edge movement, the initial musical influences of Earth Crisis were mainly from New York hardcore bands such as Agnostic Front, Cro-Mags and Sick Of It All. After the All Out War EP, they developed an increasingly technical and heavier style, citing death metal bands Napalm Death, Bolt Thrower and Obituary as prime inspirations. Buechner's vocals became rougher with each release as well, culminating in the completely gutturally screamed Gomorrah's Season Ends. Terrorizer magazine referred to this album as "heavy hardcore taken to a new level, all the blackness that was hinted at on Firestorm realized in all its formidable glory." In this period, many of their songs were built on Merrick's drum beats. Their third studio album, Breed the Killers, maintained the previous aggressiveness and its growled vocals were "taken about as far as possible", but it followed a structure more akin to the "post-Judge hardcore of the Path of Resistance record Who Dares Wins", according to Shawn Macomber of Decibel. Dennis Merrick said: "On Breed the Killers I think we achieved the most honest representation of our sound without sounding too raw or too slick". Its follow-up, Slither, had a change of style that steered towards nu metal. Buechner declared that, rather than being influenced by other styles, they "resurrected" the sound of All Out War in a proper way, which also had melodic choruses and spoken word verses. Their first post-reunion album, To the Death, was described by Buechner as "a mixture between Destroying the Machines and Breed the Killers." According to Stereo Killer, it was "arguably the band's heaviest offering" but with "more traditional verse/chorus/verse" material. Neutralize the Threat followed a similar path, but "with a Gomorrah's Season Ends vibe thrown in", the band stated. Scott Crouse said that he always tried "to get the perfect blend of heaviness, imagery and listenability" and that these two albums were the first to "hit that mark". Salvation of Innocents included, in addition, some clean vocals that were compared by one reviewer to the sludge metal band Crowbar, as well as "some elements of European melodic metalcore" and faster songs. When asked what ten bands inspired Earth Crisis over the years in a 2016 interview, Scott Crouse named DYS, Judge, Corrosion of Conformity, Agnostic Front, Slayer, Sepultura, Metallica, Conviction, Zero Tolerance and Iron Maiden.

what were the titles of their releases?

OUT:
Their third studio album, Breed the Killers,