From the late 1980s his principal instrument has been soprano saxophone , though in recent years he has recorded and performed on tenor and alto , as well .
Kelsey has worked almost exclusively as a leader of his own ensembles , usually trios and quartets .
From the late 1980s Kelsey 's principal instrument has been soprano saxophone , though in recent years he has recorded and performed on tenor and alto , as well .
Kelsey has worked almost exclusively as a leader of his own ensembles , usually trios and quartets .