Craft a musical composition that incorporates the supplied alphabet sequence and motif.
X:1
L:1/8
M:2/4
K:Eb
['G, z', 'G, z']  
X:1
L:1/8
M:2/4
K:Eb
 C>A, C>A, | G,>G, A,2 | C/A,/A,/G,/ A,>G, | F,>F, G, z | C/G,/G,/G,/ A,>G, | F,>F, G,2 | 
[M:3/4] A,/G,/G,/ z/ G,C/A,/ G, z |[M:2/4] A,/G,/G,/ z/ G,C/A,/ |[M:3/4] G,4 G, z | 
[M:2/4] C>A, C>A, | G,G,/G,/ A, z | C/A,/A,/G,/ A,>G, | F,F,/F,/ G, z | C/G,/A,/G,/ A,A,/G,/ | 
 F,>F, G, z | C/G,/A,/G,/ A,A,/G,/ | F,F, G, z |]: C>A, CC/A,/ | G,>G, A,2 | C/A,/A,/G,/ A,G, | 
 F,>F, G, z | C/G,/A,/G,/ A,A,/G,/ | F,>F, G, z | C/G,/A,/G,/ A,A,/G,/ | F,>F, G, z | 
[M:3/4] G,>G, G,C/A,/ G, z |[M:2/4] G,>G, G,C/A,/ |[M:3/4] G,4 G, z :|  