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
['d2 e2']  
X:1
L:1/8
M:4/4
K:D
|: g/f/e | d2 FG A2 Bd | e2 ef a2 fe | dB AB d2 e2 | d6 d/e/f | g3 a bc'/b/ ag | f2 d2 e2 fg | 
 ag f/e/d cA B/A/^G | A6 ef | g>d ga b2 ag | f2 d2 e2 fg | ag fd cA B^G | A>B AG A2 fe | 
 d2 fg a2 B/c/d | e3 f ab/a/ fe | d>B AB d2 c2 | d6 :|  