Form a musical piece based on the provided motif while observing the defined structure.
X:1
L:1/8
Q:1/4=80
M:6/8
K:Fdor
['DGG G=A=B c d2- d3 ddd cdd']  
X:1
L:1/8
Q:1/4=80
M:6/8
K:Fdor
 DGG G=A=B | c d2- d3 | ddd cdd | (B/c/B/A/G- G3) | Gcc cBB | G(GF- F3) | FBA cBB | B G2- G3- | 
 G3 z2 z |]  