Since 1994, it has been Lee's main bass for live and studio work.
Together, these formed the basis for his later studio work.
He left for a time later in the 1990s but returned regularly to add his music to the band's live and studio work.
Smith returned to Chicago in 1976 to do studio work.
He said his studio work continues to open doors for him.
Please note that this page includes only his own studio work.
There was always studio work, for instance, if he wanted to stay in one place.
Recently the group have returned from a spell of writing new material and studio work.
But did he want to leave studio work and get the band back together?
Most of its classical studio work has taken place in Europe.