Modern sheet melody Sheet Music Cabinets may come in different formats. If a piece is composed for just individually instrument or tone (such as a piece for a solo apparatus or for a cappella solo voice), the whole work may be written or printed as singular piece of sheet music. If an instrumental piece is intended to be performed by added than one person, each performer will exceptionally have a in halves piece of sheet music, called a part, to play from. This is especially the case in the publication of works requiring else than four or so performers, though invariably a full score is published as well. The sung parts in a modulated work are not usually issued separately today, although this was historically the case, especially before music printing trumped-up sheet music widely available.