Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
Q:1/8=120
M:6/8
K:C
['c cBc', 'c2 e f2 a']  
X:1
L:1/8
Q:1/8=120
M:6/8
K:C
 F | G2 c cBc | e2 c cBc | A2 d dcd | f2 d BAG | G2 c cBc | e2 c cBc | BAG GAB | c2 z z2 z || 
 c2 e f2 a | g2 a gec | c2 e f2 a | gec d2 e | c2 e f2 a | g2 a gec | c3 edc | BAB c2 G | cGe cGe | 
 c3- c3 :|  