Commission (of a musical work) – To commission a musical work means to contract a composer, producer, songwriter or artist to create original music for a specific audiovisual media production (usually a film, TV series, video game or advertisement). The composer will typically receive a brief outlining the desired mood, style, and specific requirements for the music. This brief may also include reference tracks (existing music pieces that serve as inspiration) and even audiovisual material from the scene where the music will be used.