The tailpiece holds one end of the strings.
The end button is on the bottom of the instrument. It is used to hold the tailpiece in place.
The waist as you called it, or the C-bouts are for the bow of the violin. While bringing the bow across the strings, yo must maneuver it. When playing the E string on the violin, the bow is almost vertical, The C-bouts help to prevent it from touching the side of the violin.
Spruce for the top, maple for the ribs and back. The fingerboard is usually ebony or rosewood, and the tailpiece and pegs and chinrest can be ebony, rosewood or boxwood.
The tailpiece on a cello does the same thing as it does on any other classical stringed instrument (violin, viola, stand-up string bass); That is, it holds the bridge and the strings in place.
In classic violin building, the sides, back and sometimes neck of the violin are always made of maple. The top, and the soundpost under the bridge, are spruce. The fingerboard, tailpiece and tuning pegs are ebony, the linings inside the violin are cedar, and the bridge itself is also maple.
A violin is typically made of spruce or maple wood for the body, ebony for the fingerboard, pegs, and tailpiece. The strings can be made of various materials such as gut, synthetic, or steel. The bow is usually made of wood (such as pernambuco) with horsehair.
One at a time, otherwise the bridge and tailpiece can fall off. Loosen all the strings slightly to reduce pressure, then entirely loosen the string you wish to change. Remove it from the peg and tailpiece, then replace it with a new string. New strings don't like to hold the pitch very well, so try to avoid changing more than one string at a time.
Unless you've put the strings on yourself, don't do this yourself, please: Loosen the string with the head tuner until it's slack enough to slip the end of the string with the metal loop up off the fine tuner. Unscrew and remove the screw used to fine tune the violin. It should be turned counter-clockwise (flat, if you were tuning). Then there is a nut beneath the screw you just removed.- it should be the same size as the screw, just against the top of the tailpiece. Unscrew it also by turning it counter-clockwise. the tuner can be gently removed from the underside of the tailpiece. Repeat. To re-string, insert the loop of the string into the round part of the "keyhole" on the tailpiece. The string will be pulled up into slit when the string is tightened.
6.5 inches
You can order a violin online at eBay (from Mendini, they are best, in my opinion, as I ordered mine from them) or at your local music store, whether they have to order it or not. You need to take your violin, strings and bridge to your local music store and have them set the strings and tune your violin.
carefully pry it open with your fingers or use a plastic object. You don't want to use a piece of metal because you could bend the metal tailpiece.
A 1 1/4 tailpiece extension in plumbing fixtures is used to extend the length of the tailpiece, which connects the sink drain to the plumbing system. This extension helps accommodate different sink heights and ensures a proper fit for the drain system.