REPEATS
One of the most confusing parts of a musical score can be the navigation symbols, such as repeats, D.S. al Coda, D.C. al Fine, To Coda, etc.
Repeat symbols are placed at the beginning and end of the passage to be repeated.
You should ignore repeat symbols with the dots on the right side the first time you encounter them; when you come to a repeat symbol with dots on the left side, jump back to the previous repeat symbol facing the opposite direction (if there is no previous symbol, go to the beginning of the piece). The next time you come to the repeat symbol, ignore it and keep going unless it includes instructions such as "Repeat three times."
A section will often have a different ending after each repeat. The example below includes a first and a second ending. Play until you hit the repeat symbol, jump back to the previous repeat symbol and play until you reach the bracketed first ending, skip the measures under the bracket and jump immediately to the second ending, and then continue.
D.S. stands for dal segno or "from the sign." When you encounter this indication, jump immediately to the sign (). D.S. is usually accompanied by al Fine or al Coda. Fine indicates the end of a piece. A coda is a final passage near the end of a piece and is indicated with . D.S. al Coda simply tells you to jump back to the sign and continue on until you are instructed to jump to the coda, indicated with To Coda .
D.C. stands for da capo or "from the beginning." Jump to the top of the piece when you encounter this indication.
D.C. al Fine tells you to jump to the beginning of a tune and continue until you encounter the Fine indicating the end of the piece (ignore the Fine the first time through).