He succeeded Jim Trimble in the late 1960s , led the band during Kenton 's illnesses , and produced several of its albums .
Shearer was lead trombonist and music director for the Stan Kenton Orchestra .
Shearer succeeded Jim Trimble in the late 1960s , led the band during Stan Kenton Orchestra 's illnesses , and produced several of its albums .
Shearer was lead trombonist and music director for the Stan Kenton Orchestra .