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There are two kind of brackets on the staves that help you with finding your voice part or the piano part. There is a s straight line bracket and a fancy curvy bracket. The fancy bracket marks the staff where the piano plays. The straight edge bracket marks the staff where you sing!
As you can see below, the top staff bracket shows you where you sing and the bottom one shows where the piano plays.

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Located under the title of the song on the first page at the top left or right corners. The arranger takes the notes that the composer gives them and arranges them for different groups to perform. For example, pop songs have to be arranged in new ways for choirs to perform them.

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This person writes the words that we sing. Sometimes composers only write the notes and they need a lyricist to create the words to their music.

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Located under the title of the song in the top left or right corners of your first page. The composer creates and writes the notes in the music.

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Located at the top of the first page of your music, usually in a larger font.

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The staff is the five lines and four spaces that the composer puts the notes on!

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A system groups two or more of your staves together with the piano and vocal parts. Any parts you see in one system will all happen at the same time. Below you see two systems each having two staves in them. Notice how the staves and two different brackets are connected with one long line! That means that the piano and vocal parts in that system all happen at the same time.

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A bar line is the line they use on the staff to separate your notes into organized groups. The space between your bar lines are called measures. It is very important that you know what a bar line is so you can count and label your measure numbers. Here are bar lines put on the staff making three different measures.