In 1979, Martin produced a set of three quintets, in consideration of Gorky's piece Nighttime Enigma Nostalgia. Each is scored for flute, clarinet, violin, cello, and piano. "There are passages in Nostalgia that build using two layers, a louder foreground and a quieter background. Both of these layers are independent of specific instruments, in other words, the various instruments jump in to play a role in either layer, then jump to the other layer. It is as if the ensemble has doubled. The technical musical term for multiple instruments interweaving to produce a single thread or idea is called Klangfarbenmelodie (tone-color-melody). Because there are two layers (louder and softer), both using this technique, Nostalgia is a unique example of 'double Klangfarbenmelodie.' The piece ends with a series of intense rhythmic pulsations and several apocalyptic fanfares." (From the performance notes.)