Hear Philadelphia Music Strings MozartOriginal vintage poster promoting music in the city of Philadelphia featuring a bright and colourful illustration of an abstract song sheet with different lines of written musical notes overlapping each other with the words "(bassoon) Mozart Adagio strings" in orange letters appearing in the pattern and the title split up in black letters "Hear Phila del phia" below. One of a series of posters. Artwork by Jack Gregory (John C. Gregory; 1930 2004).