Elements of Music 
Chamber orchestra and flute
Simple to complex melodies
Fast-slow-fast tempo
Fast rhythms capture attention
Slow rhythms impacts physiology (heart rate, respiration, suck/swallow/breathe synchrony) which can calm and focus attention
Rich in overtones while maintaining definitive bass line
Overtones invite attention and engagement outward
Lower frequencies provide grounding and organization
 
Clinical Applications 
Postural activation, core activation, and breath activation
Subtle modulation issues
Activation of body for engagement and interaction (“low engine” child)
Refinement of attention