The flute music that drifts through the play represents the single faint link Willy has with his father and with the natural world. The elder Loman made flutes, and was apparently able to make a good living by simply traveling around the country and selling them. This anticipates Willy's career as a salesman, but also his underused talent for building things with his hands, which might have been a more fulfilling job. The flute music is the sound of the road Willy didn't take.
Flute Symbol Timeline in Death of a Salesman
The timeline below shows where the symbol Flute appears in Death of a Salesman. The colored dots and icons indicate which themes are associated with that appearance.