Three valves control the flow of air in the single horn, which is tuned to F or less commonly, B-flat. The more common double horn has a fourth valve, usually operated by the thumb.
Tips for printing coloring book page or coloring sheet:
Step 1: Click on "Print" link of your choice, if you want a
Musical horn image for coloring yourself then you need to click on "Print
Musical horn Coloring page (B/W)" link. If you want colored (already filled with colors)
Musical horn graphic to print then click "Print
Musical horn Coloring page (Color)".
Step 2: Now a new pop-up window will open along the
Musical horn image of your choice (if new window does not open-up then you may need to check your pop-up blocker settings.). Now click on "PRINT". This will open printer dialog, select your print and print.