Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/16
Q:1/2=75
M:4/4
K:D
['d4 A4 (Bcd2)']  
X:1
L:1/16
Q:1/2=75
M:4/4
K:D
 d4 A4 (Bcd2) A4 | (GAB2) A2G2 (FGA2) D4 | d4 A4 (Bcd2) A2G2 | (FED2) TE4 D8 |:  