Rob Grange (born 1950 in Flint, Michigan, United States), is an American rock bass guitarist, best known for his work with Ted Nugent and his unique phase bass lines in the song “Stranglehold”…. Today, Smith is a postdoctoral researcher at Mount Sinai where he studies stochastic gene expression. 6 Who are some famous musicians that Greg Smith has worked with?.5 Who is Greg Smith and what does he do?.