Develop a musical creation based on the specified alphabetical structure and given motif.
X:1
L:1/4
M:3/4
K:Eb
['B2 e']  
X:1
L:1/4
M:3/4
K:Eb
 B | B2 e | B2 G | A F B | G E B, | E/E/E/E/E/E/ | E2 B | B2 e | B2 G | A F B | G E F | 
 G/G/G/G/G/G/ | G2 B | e d c | B A G | A2 B | c2 d | e d c | B2 e | f e d | e2 B, | E/E/E/E/E/E/ | 
 E2 F | G/G/G/G/G/G/ | G2 B | e/e/e/e/e/e/ | e2 |]  