Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
Q:1/8=120
M:2/4
K:F
['FG AF G_E F2 cc dB cc', 'F2 FG AG']  
X:1
L:1/8
Q:1/8=120
M:2/4
K:F
 FG AF | G_E F2 | cc dB | cc A2 AG BA | GF A2 | cB AF | G_E F2 || FG AG | F2 |]  