Which of the following best defines 'music composition'?

Music composition is best defined as the process of organizing sounds and musical ideas into original works. This involves creating new melodies, harmonies, rhythms, and structures that result in a unique piece of music. Composers draw upon their creativity and understanding of musical theory to craft compositions that express their artistic intentions. The essence of music composition lies in the act of creating something new rather than altering or replicating existing works. This distinguishes it from revising existing songs, practicing scales, or performing pieces written by others, which are all valuable musical activities but do not inherently involve the creation of original musical content.