Graham Parker, General Manager and Vice President of WQXR, and Simone Dinnerstein, one of the best-known contemporary Bach interpreters, discuss WQXR’s all Bach festival, Bach 360, March 21 (Bach’s birthday)–March 31.WQXR 105.9 FM in New York and WQXR.org will break with its regular programming to present an all-Bach playlist, playing every single piece by the composer—every cantata, every chorale prelude, every keyboard study—more than 1000 works total.  Dinnerstein’s album of Bach’s Goldberg Variations ranked 1 on the US Billboard Classical Charts in its first week of sales, and she’ll be performing her rendition of Bach’s Goldberg Variations on March 28, at 12 pm, in The Greene Space.