Develop a musical composition based on the provided pattern of letters and incorporating the given motif within it.
X:1
L:1/8
M:6/8
K:Dmix
['d^cA A2', 'c3 AdB cAG']  
X:1
L:1/8
M:6/8
K:Dmix
|: d^cA A2 c | d^cA GED | d^cA A2 D | G2 G GED | d^cA A2 c | d^cA GED | E2 E cGE | EDD D2 A :| 
 D/E/F/G/A/B/ c3 | AdB cAG | AB^c ded | dfd AFD | D3 c3 | AdB cAG | E2 E cGE | EDD D2 A | 
 DF/G/A c3 | AdB cAG | AB/^c/d ded | dAF DFA | D/E/F/G/A/B/ c3 | AdB cAG | E2 E cde | dcA GED ||  