A musical score is written music that shows all parts. A conductor's score, for example, may have as many as thirty different simultaneous instrumental parts on one page, normally having the woodwind at the top, followed below by the brass, the percussion and the strings. A distinction is made between a vocal score, which gives voice parts with a simplified two-stave version of any instrumental parts, and a full score, which includes all vocal and instrumental parts generally on separate staves. To score a work is to write it out in score. A symphony, for example, might be sketched in short score, on two staves, and later orchestrated or scored for the required instruments.