Arrangeur musical
Arranging music involves taking an existing piece of music and adapting it for a different ensemble or group of instruments. This can involve changing the instrumentation, the key, the tempo, or the overall structure of the piece. Arrangers often work with composers to create new arrangements of their music. Some arrangers do work that involves creating all new music from scratch. Arrangers must have a strong understanding of music theory and orchestration, as well as the ability to hear and imagine how a piece of music will sound in different arrangements.