Petit's blues guitar experience started at a young age in California and continued through addiction, alcoholism, homelessness, and subsequent recovery.

He went from being a performer in the London Underground to giving masterclass University lectures on blues music whilst becoming a well-known stage act.

Petit has released six albums, toured extensively around the United Kingdom and Europe, gaining critical recognition, sizeable sales and widespread radio airplay.

Petit's playing style, described by Classic Rock Magazine as containing "The fire of Freddie King, the instinct of Jimmy Page and the soul of Eric Clapton"[2] moved former Rolling Stone Mick Taylor to comment: "He’s got his own unique take on contemporary blues… I’ve heard him do a great live version of Freddie King’s "Have You Ever Loved a Woman?"

Petit could often be seen at the Huntington Beach landmark venue, The Golden Bear,[4] which hosted such acts as Jimi Hendrix and Bob Dylan, as well as Blues legends Albert King, B.B.

Petit's exposure, from a young age, to some of these artists and guitar talents would have a major impact on his personal creative development and future musical career.

By his mid-teens he was performing in bars and clubs across California, including The Golden Bear, five nights a week with bands ten years his senior, alongside such musicians as Randy Rhoads.

Petit also cites British blues pioneers Alexis Korner and Cyril Davies as having influenced his teenage musical sensibilities.

"[7] During his initial years in the UK, Petit toured London's Leicester Square and Little Venice over a 9-month period in Phil May of The Pretty Things "Friends Band" alongside May, himself, David Gilmour of Pink Floyd and Ian Stewart of The Rolling Stones.

In 2008, Petit embarked on his BLUnivErSity tour, travelling across the UK to colleges and universities to raise awareness of the genre, and to make the blues more accessible to young people.

On 1 December 2010, Petit organised Save The 100 Club Benefit Concert to raise funds for the historic venue to prevent its imminent closure.

The sessions for the album continued over an 18-month period and included guest appearances from legendary Howlin’ Wolf guitarist Hubert Sumlin, Dr. John, British blues forefather Chris Barber, Mick Taylor and Patrick Carney of The Black Keys.

In June 2012, a vinyl only live album Stephen Dale Petit At High Voltage was released in a limited edition pressing.

The Express praised the album: "Petit’s electrifying guitar and gutsy vocals are the drive behind this musical tour de force… he’s a master craftsman at the top of his game.

In March 2017, Petit flew to the US to record at Vance Powell's Sputnik Sounds in Berry Hill, Nashville Tennessee, with Sophie Lord (bass) and Jack Greenwood (drums).

Although slated for a late 2018 release, Petit received a Stage 4 cancer diagnosis in mid 2018, for which he underwent intensive chemotherapy and radiotherapy treatments.

Petit began recording his next album at RAK Studios in London in early September 2022 with Vance Powell producing; further sessions have taken place at Brighton Electric, England and in Portugal with Boz Boorer.