Carl Marshall
Soul Dog was the brainchild of Carl Marshall, a funk guitarist born in Independence, LA. He was active from the mid-’60s to the late-’70s in the New Orleans music scene. He became involved with the group Sam & the Soul Machine, which consisted of Aaron Neville (lead vocals), Sam Henry (keyboards), Gary Brown (sax), Richard Amos (bass), Cyril Neville (congas) and Robert Bush (drums). Under the name Soul Dog Marshall released his debut LP, Movin’ On, in 1976.
Rapping before there was rap
The track Soul Dog became popular to be picked up and released by Amherst Records, which also released the LP Movin’ On
Soul Dog about the track:
It was a CB/trucker talk-type of thing. We were rapping before there was rap.
Source: Complex, Funk My Soul, Jefferson Blues Magazine