Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/4
M:2/4
K:G
['', 'G B/d/', 'e e']  
X:1
L:1/4
M:2/4
K:G
 D |: G B/d/ | g/b/ a/f/ | g f | c3/2 d/ | e d | c A | e d | B3/2 A/ | G B/d/ | g/b/ a/f/ | g f | 
 c3/2 d/ | e d | c F |1 G2- | G D :|2 G2- | G B/d/ || g g | g g | f2- | f D/F/ | e e | e e | d2- | 
 d G | F A/c/ | e d | F A | F A | F A/c/ | e d | B2- | B d | g g | g g | f2- | f G/B/ | e e | e e | 
 d2- | d G | F A/c/ | e d | F A | F A | F A/c/ | e d | G2 | G2 ||  