A unique pairing of strings from Berlin improviser Wolfgang Schwabe performing on the Guqin, or Qin, a plucked seven-string Chinese musical instrument of the zither family, and Hui-Chun Lin on cello and voice, finding common ground in instant compositions of exotic string figures plucked and bowed, with Hui-Chun Lin sometimes adding emotional release in voice.

Four strings, voice and trombone make up the multinational collective quintet of Davide Piersanti (trombone), Hui-Chun Lin (cello and voice), Sergio Andres Castrillon Arcila (cello), Ulf Mengersen (bass), and Klaus Kurvers (bass) who are captured live at "t-berlin" in 2016 for a set of inventive and active cooperative conversations named for Greek letters.

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