Construct a musical piece conforming to the alphabetically indicated blueprint and the supplied motif.
X:1
L:1/8
M:2/4
K:D
['a>g ff', 'ag gf']  
X:1
L:1/8
M:2/4
K:D
 a>g ff | f>e dd | edec | d/e/f/e/ d/e/f/g/ | a>g ff | fe dd | ed ec | d2 !fermata!d2 :: e2 f2 | 
{a} gg/f/ fg | f2 g2 |{b} aa/g/ fa | ag gf | ag gf | ab/a/ gf | f2 e2!D.C.! :|  