[1] Halprin is "autodidactic", with a verifiable IQ in the "145 range", as tested on the Wechsler Intelligence Scale for Children (WISC), despite having only finished the eighth grade.

[2][3][4][title missing] In 1975, after leaving home at the age of 16, Halprin became an assistant to Barry Imhoff, the promoter responsible for the Bob Dylan "Rolling Thunder Revue" tour.

Halprin played guitar and keyboards, co-engineered and co-produced two cuts on the 1980 Warner Bros. Records album by Natalie Cole and Marvin Gaye guitarist, Chuck Bynum entitled "Marathon Lover.” In 1984 following 9 years touring with Bob Dylan as Production coordinator Barry Imhoff’s assistant for The Rolling Thunder Revue tour, The Band’s final farewell concert and film The Last Waltz, co-writing and touring as an assistant road manager for Natalie Cole, as well as The Rolling Stones plus co-engineering, co-producing and playing on Natalie Cole and Marvin Gaye guitarists Chuck Bynum’s initial solo record released on Warner Bros. Records entitled Marathon Lover and his marriage Halprin and his wife, Patti, began a mortgage banking and luxury residential real estate firm headquartered in South Florida.

After the sale of Y&T's headquarters, Criteria Studios, to The Hit Factory in 1999, Halprin financed his current venture, independent record label VRP Music in 2000.

[8] He produced Carter's single and double compact disc (CD), Midnight Over Honey River,[9][10] released in 2002 and 2003 respectively by VRP Music.

[12] In 2003, Halprin produced the track, "Bitter Rain," featured on the Universal Music Group CD, Yourself, Myself, The Songs Of Miyuki Nakajima.