A 4-page manuscript scored for violin and piano by the Argentinian composer Marcel Etchecopar, with dynamics penned in ink. The title, in caps, indicates that the work is a Serenade for violin with piano or orchestra, presented to the violinist Mishel Piastro and the Artists of the Syphonette, under which he has added Nightingale's Farewell To The Rose). Etchecopar has penned his name in caps on the upper right.

Etchecopar is an Argentinean composer known for writing films and working in TV.

The violinist Mishel Piastro was a former concertmaster and solo violinist of the New York Philharmonic under Toscanini. He was perhaps most widely known in his later years as the conductor of the Longines Symphonette, an orchestra that was heard over 200 radio stations.