Compose a piece of music following the given alphabetical representation of the musical structure and the provided motif.
X:1
L:1/8
Q:1/4=58
M:2/4
K:E
['G4 E2 B,2', 'G, F, E,2']  
X:1
L:1/8
Q:1/4=58
M:2/4
K:E
 G4 | E2 B,2 | G4 | G F E2 | G4 | E2 B,2 |]: B,4 | G, F, E,2 | B,4 | C B, A,2 | B,4 | G, F, E,2 | 
 F,4 | G, F, E,2 | F, E, E,2 | E, B,, B,,2 | E,4 | E, B,, B,,2 | B,,4 | B,,4 :|  