Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
M:6/8
K:D
['f3 fed g3 g2 f eAc ecA', 'BAG cBc ABc']  
X:1
L:1/8
M:6/8
K:D
 f3 fed | g3 g2 f | eAc ecA | f3 f2 e | d3 dcd | efg e2 d | cBc ABc |1 d2 a bag :|2 d2 A B2 A |: 
 F2 A AGF | G2 B BAG | cBc ABc | d2 e f3 | F2 A AGF | G2 B BAG | cBc ABc |1 d2 A BAG :|2 
 d2 a bag ||  