Answer:
The Double-headed serpent is an Aztec sculpture. It is a snake with two heads composed of mostly turquoise pieces applied to a wooden base. It came from Aztec Mexico and might have been worn or displayed in religious ceremonies. The mosaic is made of pieces of turquoise, spiny oyster shell and conch shell. The sculpture is at the British Museum.
Explanation:
The answer is a swing coat
The little dot next to the quarter note counts as a third beat. So it basically is an extra one quarter note... I hope this helps ;)