Construct a musical composition following the given alphabetical structure and incorporating the specified motif.
X:1
L:1/8
M:4/4
K:G
['cded cAGE GGGE GAcd', 'cABGA AB cdef gfga gedc BGGB cdef']  
X:1
L:1/8
M:4/4
K:G
 AB | cded cAGE | GGGE GAcd | ecgc acgc | eaag (3efg ed | cded cAGE | GGGE GAcd | ea (3a^ga e=ged | 
 cABGA :: AB | cdef gfga | gedc BGGB | cdef g ed | eaag aged | cdef ggge | aaaf ggge | 
 gggd (3efg ed | cABG A :|  