Produce pleasing melodies that correspond with the indicated letter notation and incorporate the suggested theme.
X:1
L:1/16
M:2/4
K:D
['f2fa f2fa e2eg f2d2 A2Ac B2e2', 'gfed dcBA']  
X:1
L:1/16
M:2/4
K:D
 f2fa f2fa | e2eg f2d2 | A2Ac B2e2 | d2c2 d4 | f2fa f2fa | e2eg f2d2 | A2Ac B2e2 | d2c2 d4 :| 
 gfed dcBA | dfa2 dfa2 | gfed dcBA | d2f2 d4 | gfed dcBA | dfa2 dfa2 | gfed dcBA | d2f2 d4 :|  