Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/4
M:2/2
K:F
['F F']  
X:1
L:1/4
M:2/2
K:F
"F" F F F C |"Bb" D D"F" C2 |"G7" A A"C7" G G |"F" F2 z C |"F" F F F C |"Bb" D D"F" C2 | 
"G7" A A"C7" G G |"F" F2 z2 |]  