Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/16
M:3/8
K:G
['B2B2c2 d4 ge']  
X:1
L:1/16
M:3/8
K:G
 B2B2c2 | d4 ge | d2d2 ec | B2B2 GA | B2B2c2 | d4 ge | dedcBA | G4 z2 ||  