What term is defined as the actual writing of piece music?

The term "composition" is defined as the actual writing of a piece of music. It involves the process of creating and developing musical ideas, melodies, harmonies, rhythms, and structures, and putting them together into a coherent musical work. Composition can be done using various musical instruments, software, or simply by writing notes on paper. It requires musical knowledge, creativity, and the ability to translate musical ideas into a tangible form that can be performed or recorded.