Use blank staff paper to write your piano accompaniment. You can buy it at a music store or even find it online at no charge (see Resources). Sheet music paper, or staff paper, consists of a series of music staffs, each with five lines and four spaces. These lines and spaces represent music notes. A typical sheet of staff paper contains ten or twelve staffs, also called staves. Piano accompaniment uses three staffs at a time, with the bottom two dedicated to the bass and treble clef for the piano and the top staff dedicated to the melody, or vocal, line.
Write the information needed at the beginning of your piano accompaniment. The first bit of information is the clef sign. You will use a treble or a bass clef sign to indicate which clef the music is written in. For piano accompaniment, there will usually be a treble clef for the melody, a treble clef for the right hand of the piano and a bass clef for the left.
Write the key signature after the time signature. The key signature is a series of sharp or flat signs that indicate the key a song is written in. No sharps or flats indicates a song is in the key of C. If you wanted to indicate a song was written in G, you place a sharp sign on the F line at the beginning of the sheet music.
Attach the two bottom staffs together with a bracket at the beginning of the staffs to indicate the parts are played together on the piano. If you have lyrics that go with the melody and piano accompaniment, you can write the lyrics in the space beneath the first staff, matching the words with the notes of the melody.