Double bassist Dean Ferrell is a performer that you’ve got to see to believe. Putting a label on what Dean does in simply impossible–the best I can do is to call his performances historically informed alternate tuning performance art.
Dean did an hour-long performance at the 2007 ISB Convention featuring music from Captain Tobias Hume. His performance from this year’s 2009 performance is titled “Ode to Per Questa.” Enough said–check it out (approx. 45 minutes):