Develop a piece of music by incorporating the provided motif and following the outlined musical structure represented by alphabet characters.
X:1
L:1/8
M:4/4
K:D
['F2 F2']  
X:1
L:1/8
M:4/4
K:D
 AA Ad- d2 d2 | B2 Bd- d2 dd | cc cc- c2 B2 | B2 AA- A2 z2 | FF FB- B2 A2 | AA GG- G3 G | 
 F2 G A2 F D2 | E2 DD- D4 | z2 F2 F2 F2 | G2 GG- G4 | E2 E E2 D E2 | G2 FF- F4 | D2 D D2 E F2 | 
 G2 G B,2 E D2 | C2 C C2 B, C2 | E D2 D- D4 |]  