Craft a musical composition by incorporating the provided motif and the alphabetical representation of the given sequence.
X:1
L:1/8
M:3/4
K:G
['B,G, G,2 G, z G,E, E,2 E,', 'z [M:3/4] (B,G,)', 'z (G,E,) E,4 E,G, G,E, E,G, E,>E,']  
X:1
L:1/8
M:3/4
K:G
 B,G, G,2 G, z | G,E, E,2 E, z | E,G, G,E, E,G, | E,>E, E,2 E,G, ||[M:2/4] E,2 E, z || 
[M:3/4] (B,G,) G,3 z | (G,E,) E,4 | E,G, G,E, E,G, | E,>E, E,2 E,G, | E,2 E, z z2 |]  