Create musical composition by adhering to the given musical structure represented by letters and integrating the given motif.
X:1
L:1/8
M:4/4
K:Eb
['B B3 B']  
X:1
L:1/8
M:4/4
K:Eb
 E2 E E B2 (Bc) | _d2 c2 B2 z2 | E2 E2 B2 B c | _d d c2 B2 z2 | E2 (GA) B2 A G | F4 E2 z B | 
 B3 B B3 B | B3 B B2 AG | F4 E2 z2 | | e4 _d3 c | B2 c _dc B2 z | E2 (GA) B2 AG | F4 E2 z2 | |]  