The group also played at the Sky River Rock Festival and Lighter Than Air Fair near Sultan, Washington.

In 1969 and 1970, Parker played sitar and electric bass in the musical "Hair" in San Francisco, Los Angeles, and Las Vegas.

[8][9] In the 1970–1980 time period, he also played electric bass with groups led by Willie Bobo, Bobby Hutcherson, John Klemmer, Charlie Musselwhite, Mike Nock, and Gábor Szabó.

His work with arranger and band leader H. B. Barnum resulted in his electric bass line propelling Al Wilson's Show and Tell to Number 1 on the Billboard charts and a R.I.A.A.

As a studio musician, he played bass on albums by Roy Buchanan,[12][13][14] David Cassidy, Jackie DeShannon,[15] Ned Doheny,[16] Albert Hammond, Tom Jones, Johnny Mathis, Essra Mohawk,[17] Oliver.

[18] Parker also played in world tours backing David Cassidy, Tom Jones, and Johnny Mathis.

Parker got his first lessons to become a recording engineer from David Baskind at B & B Sound on Melrose, near Fairfax, in Los Angeles.

In 1979, he started working for Mike Hightower and Wayne Henderson at Wide Track Studios in Van Nuys.

[20] He was recording engineer for albums by Wayne Henderson,[21] Miki Howard,[22] Ronnie Laws,[23] Alphonse Mouzon,[24] Keith Washington,[25] Dwight Sills.

He was the recording engineer at Estudio Kay-nah in Mexico City owned by Pedro Plascencia and his mother, Carmen Salinas.

Gold[11] Johnny Mathis – The Heart of a Woman (Columbia, 1974) The Osmonds – Love Me For a Reason (MGM, 1974) The Osmonds – Around the World: Live in Concert (MGM, 1975) Ned Doheny – Hard Candy (Sony, 1976)[16] Tom Jones – Say You'll Stay Until Tomorrow (Epic, 1977) Roy Buchanan – Loading Zone (Polydor, 1977)[12][13] Jackie DeShannon – You're the Only Dancer (1977)[15] Oliver – Prism (United Artists)[18] Ned Doheny – Prone (Sony, 1979) Albert Hammond – Your World and My World (Sony, 1980) Roy Buchanan – Guitar on Fire (Rhino, 1993)[14] Alphonse Mouzon – The Sky is the Limit (Tenacious, 1985)[24] Miki Howard – Miki Howard (Atlantic, 1989)[22] Peaked at number 4 week of March 24, 1990 on the Billboard R&B albums chart.