Create a musical piece that integrates the provided motif and follows the prescribed alphabetical structure.
X:1
L:1/4
M:4/4
K:Eb
['B, E2']  
X:1
L:1/4
M:4/4
K:Eb
 E,2 G,2 | B,4 | B, E2 F/D/ | E2 z B, | C3/2 D/ E C | C B, G2 | G F/E/D/C/B,/A,/ | G,3/2 C/ B, A, | 
 B,2 z2 | B,2 D3/2 E/ | F C C D | E B, E2 | E D A G | C3/2 F/ E D | E2 z2 |]  