Produce pleasing melodies that correspond with the indicated letter notation and incorporate the suggested theme.
X:1
L:1/8
M:2/4
K:F
['CCDC E2 E2 CCDC F2 F2 AAGF']  
X:1
L:1/8
M:2/4
K:F
 CCDC | E2 E2 | CCDC | F2 F2 | AAGF | FE B,2 | FFED | DC A,2 |]  