Develop a musical composition using the alphabetic representation of the specified sequence and incorporating the given motif.
X:1
L:1/8
Q:1/4=140
M:3/4
K:Edor
['B2 B2 B4 B4 (AB) (G A3){FG}']  
X:1
L:1/8
Q:1/4=140
M:3/4
K:Edor
 B2 | B2 B4 | B4 (AB) | (G A3){FG} F2 | E4 c2 | d4 F2 | d4 d2 | c2 B4- | B4 (Bc) | e4 de | d4 FA | 
 G4 FE | D4 EF | G4 (GA) | B4 F2 | F2{GF} E4- | E4 ||  