Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
Q:3/8=120
M:6/8
K:C
['ABG FGE DDD DDD', 'dff fed']  
X:1
L:1/8
Q:3/8=120
M:6/8
K:C
 C |[K:D]"^the Lady first Highdance," A | ABG FGE | DDD DDD | FED AGF | FEE E3 | ABG FGE | 
 DDD DDD | FAD EAG | FDD D2 |: A | FAA Add | dff fed | Aag fed | e2 e e2 e | FAA Aed | dff fed | 
 ABG FGE | FDD D2 :|  