This is the shortest part of the flute that contains a few keys. The foot joint has a rod and it is important for it to be aligned with the center of the keys in the body of the flute.
This is the part at the top of the flute that touches the mouth and has no keys. On the head joint you will also find the tuning cork, which you can move to adjust the intonation of the flute. The embouchure plate is likewise found on the head joint. This is where the musician rests their lower lip in order to play. A curved lip-plate is easier to blow than a straight lip-plate. The blow hole, also known as the mouth hole, is the hole in the middle of the plate. This is where the musician blows air into in order to produce sound. It can either be oval shaped or rounded rectangle. A larger mouth hole favors low notes, while a small mouth hole favors high notes.
This is the longest part of the flute and contains most of the keys. The body joint connects the head and foot joint. The keys are pressed in order to produce a certain pitch. It is important that the key pads and springs are in good condition to produce the proper quality of sound. Badly adjusted keys or lacklustre springs can make the instrument harder to play.