Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:4/4
K:C
['dAFA GBAG (3FED FA GBAG FAdf', 'd2 cd ecAc efge fdde fgaf edcB']  
X:1
L:1/8
M:4/4
K:C
[M:2/2][K:D] f"^Fisher's Hornpipe"[Q:1/8=150]"^hornpipe" (3.ABc | dAFA GBAG | (3FED FA GBAG | 
 FAdf gfeg | fddf ecAc | dAFA GBAG | (3FED FA GBAG | FAdf gece | d2 d2 d2 :| cd | ecAc efge | 
 fdde fgaf | edcB Agfe | dcBc A2 dc | BGGA BcdB | AFDF ABcA | BcdA BGEC | D2 D2 D2 :|  