More recently, Harts has become known for his Hendrix-like guitar playing and unique blend of Funk, Pop, Rock and Soul music, which has earned praise from wide range of musicians such as Prince, Nick Littlemore, André Cymone, Ross Wilson, Lars Stalfors and music industry such as Paul Lester, Tom Robinson, Matt O'Connor and Richard Kingsmill.
n 20 July 2012, Harts released the first official single, titled "All Too Real". "All Too Real," was released to positive reviews, which included many online blog features, national airplay on Australian radio station Triple J,in the UK on BBC Radio 6 Music, as well as being the second most added to Australian alternative radio the week of its release. The music video for the song also enjoyed airplay on Australian late night music video program Rage four weeks in a row. "All Too Real" was also released on a limited run of special edition double A-side vinyl, along with the track 'Back to the Shore', on 9 August 2012.
Harts released his debut EP, "Offtime" on 1 March 2013 through Island Records Australia under Universal Music Australia. All songs on the EP were composed, produced, arranged, written and performed by Harts. It was mixed in Los Angeles by Lars Stalfors and mastered in New York by Heba Kadry.Stalfors said of working with Harts "He has such a great ear for melody and his production is so unique, which is what I love".