Final answer:
A child with ASD referred to music therapy for self-expression through music would most likely draw upon the Nordoff-Robbins approach/model.
Step-by-step explanation:
A music therapist working with a child with ASD to support self-expression through music is most likely to draw upon the Nordoff-Robbins approach/model.
Nordoff-Robbins is a music therapy approach that focuses on the individual's musical abilities and uses improvisation and interaction to facilitate self-expression and communication