Develop a musical composition that includes the supplied motif while following the designated alphabetical pattern.
X:1
L:1/4
M:6/4
K:D
['d/e/ f3/2 e/ d e c A', 'G B']  
X:1
L:1/4
M:6/4
K:D
 d/e/ | f3/2 e/ d e c A | d3/2 c/ B A G/F/E/D/ | C/D/ E E E2 F | G/F/G/A/B/c/ d B G | 
 A F D E C A, | B,/C/ D D D2 E/D/ || C/D/ E C A E G | F D d c/d/ e D | C/D/ E E E2 F | 
 G B G B G B | e3/2 f/e/d/ c c/d/ e | f3 d d2 ||  