An unknown trumpeter in Manhattan's neighbourhood of Chelsea was heard playing Simon & Garfunkel's "The Sound of Silence" on April 27.<br /><br />The tune followed New Yorkers' applause for health care workers battling on the frontline of the coronavirus pandemic.<br /><br />The filmer, Jennever Pelaez, posted the video online hoping that somebody would recognise the mysterious musician.<br /><br />Pelaez said: "It’s my favorite thing that happened yesterday, and probably this entire week too."