Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:2/2
K:G
['ABzB z BzB c2 BA B z3', 'B2 AG A2 GF G2 FE F2', 'B,2 B2', 'F^DF^D G2 FE ECEC F2 E^D CA,CA,']  
X:1
L:1/8
M:2/2
K:G
 ABzB z BzB | c2 BA B z3 | ABzB z BzB | c2 BA B z3 | B2 AG A2 GF | G2 FE F2 E^D | E2 ^DC ^D2 CB, | 
 B,A,B,C B, z3 :: B2 AG A2 GF | G2 FE F2 E^D | E2 ^DC ^D2 CB, | B,A,B,C ^DEFG | B2 AG A2 GF | 
 G2 FE F2 E^D | E2 ^DC ^D2 CB, | B,A,B,C B, z3 :| B,2 B2 B,2 B2 | BAAF GF G2 | B,2 B2 B,2 B2 | 
 BAAF GF G2 | B,2 B2 B,2 B2 | BAAF GF G2 | B,2 B2 B,2 B2 | BAAF GF G2 | F4 G2 E2 | E4 F2 ^D2 | 
 ^D4 E2 ^DC | B,A,B,C ^DEFG | F4 G2 E2 | E4 F2 ^D2 | ^D4 E2 ^DC | B,A,B,C B, z3 |: F^DF^D G2 FE | 
 ECEC F2 E^D | CA,CA, ^D2 CB, | B,A,B,C ^DEFG | F^DF^D G2 FE | ECEC F2 E^D | CA,CA, ^D2 CB, | 
 B,A,B,C B, z3 :|  