This week's episode of the Phenomenal 50 features Bach's Concerto in G minor for Keyboard, Strings, and Continuo, BWV 1058 in a performance from December 4, 2012 in Alice Tully Hall given by pianist Jeremy Denk, violinists Kristin Lee, Adam Barnett-Hart, Jessica Lee, Erin Keefe, Sean Lee, and Ani Kavafian, violists Richard O'Neill and Paul Neubauer, cellists Nicholas Canellakis and Fred Sherry, and double-bassist Edgar Meyer.