Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/8
Q:3/8=90
M:9/8
K:G
['g2 d (B/c/d)B']  
X:1
L:1/8
Q:3/8=90
M:9/8
K:G
 g2 d (B/c/d)B dBG | g2 d (B/c/d)B AFD | g2 d (B/c/d)B dBG | (B/c/d)B ADF G3 |:  