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:A
['c A']  
X:1
L:1/4
M:2/4
K:A
|:"A" A3/2 B/ c A |"A" e c A E |"D" F3/2 G/ A B |"A" E3 B/c/ |"Bm" d3 c/d/ |"A" e3 A | 
"D" f3/2 g/ a c |1"E7" B3 E :|2"E7" B2"A" A2 |]:"D" d c/d/"E7" B e |"D" d c/d/"E7" B E | 
"A" A e e d/c/ |"^(D)" c2"E7" B2 |"A" A3/2 c/ e A |"D" f/e/d/c/"E7" B E |"D" F d d c/d/ | 
"E7" B2"A" A2 :|  