Construct musical melodies following the designated letter arrangement and the given motif.
X:1
L:1/8
M:4/4
K:F
['F2 F2']  
X:1
L:1/8
M:4/4
K:F
 C2 | G2 G2 AAGA | B2 B2 A2 F2 | F2 F2 EE D2 | GGGE C2 C2 | F4 G4 | c4 A2 GA | BBAA G2 |]  