Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
M:2/2
K:Dmix
['d2 ed cAGB Add^c dfag fded cAGE', '(3Bcd eaag', 'fdd^c d2 cd eaag', 'cd eaag']  
X:1
L:1/8
M:2/2
K:Dmix
 d2 ed cAGB | Add^c dfag | fded cAGE | E2 cE ED D2 :: fdd^c d2 (3Bcd | eaag efge |1 
 fdd^c d2 (3Bcd | eaag edde :|2 f3 g eA (3Bcd | eaag efge |:"^variations" d3 B cAGc | Add^c daag | 
 fdec dcAG | EGcE ED D2 :: fdd^c d2 cd | eaag efge |1 fdd^c d2 cd | eaag edde :|2 f2 ec d2 cd | 
 eaag efge ||  