Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/16
M:2/4
K:D
['(3BcB.A2 d2F2 (3FGF.E2 B2C2', '.a2.c2 (3cdc.B2']  
X:1
L:1/16
M:2/4
K:D
 Ad | (3fgf.e2 .d2.c2 | (3BcB.A2 d2F2 | (3FGF.E2 B2C2 | (3EFE.D2 A2f2 | (3fgf.e2 d2c2 | 
 (3BcB.A2 d2F2 | (3FGF.E2 B2C2 | D4 D2 :: .d.c | (3cBc.B2 .f2.e2 | (3^def.e2 .a2.c2 | 
 (3cdc.B2 .f2.^G2 | (3BcB.A2 .E2.c2 | (3cdc.B2 .f2.e2 | (3^cdf.e2 .a2.c2 | (3cdc.B2 .F2.^G2 | 
 A4 A2 :|  