Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/4
M:3/4
K:D
['A/B/A/G/ F', 'c d', 'c d']  
X:1
L:1/4
M:3/4
K:D
 A/B/A/G/ |:"D" F A d | f e d |"A" g c2- | c c d | e d c | B A G |"D" F/G/ A2- | A2 A/B/A/G/ | 
 F A d |"D7" f g a |"G" b g2- | g g/a/b/g/ |"D" f/a/ f d |"A" e/g/ c e |"D" d3/2 d/"A" d |1 
"D" d A/B/A/G/ :|2 d c d ||[K:A]"A" e/f/e/d/c/d/ | e/f/e/d/c/e/ |"E" d B2- | B d c | B c d | 
 e f ^g |"A" b a e/d/ | c c d | e/f/e/d/c/d/ | e/f/e/d/c/e/ |"E" d B2- | B d c | B c d | e f ^g | 
"A" a2"E" e |"A" a c d | e/f/e/d/c/d/ | e/f/e/d/c/e/ |"E" d B2- | B d c | B c d | e f ^g | 
"A" b a e/d/ | c c d |"F#" e/f/e/d/c/d/ | e/f/e/d/c/e/ |"Bm" d B2- | B d c |"E" B c d | e f ^g | 
"A" a2"E" e |"A" a A/B/A/=G/ ||  