Develop a musical piece using the given motif and adhere to the outlined musical structure.
X:1
L:1/8
M:6/8
K:E
['B2 c', 'gag fgf'  
X:1
L:1/8
M:6/8
K:E
 B2 c | e3 g2 e | f2 e gfe | c2 f f2 e | f3 fec | BcB B2 G | B2 c e2 f | gag gfe | f3 B2 c | 
 e3 g2 e | f2 e gfe | c2 f f2 e | f3 fec | BcB B2 G | B2 c e2 f | gag fgf | e3 |] fga | b3 gbb | 
 fbb efg | a3 gag | fgf fec | BcB B2 G | B2 c e2 f | gag gfe | f3 fga | b3 gbb | fbb efg | a3 gag | 
 fgf fec | BcB B2 G | B2 c e2 f | gag fgf | e3 |]  