Diderot String Quartet's odd rendition of Schubert's 'Winterreise'

It seemed like an odd programming decision to start with.The young Diderot String Quartet, newly in residence at Washington National Cathedral, was devoting the second of its three-concert series there this season to Harold Birston's transcription from piano and voice of Schubert's song cycle, "Winterreise" ("A Winter's Journey"). In it, the group took on the piano's role.