Create a musical composition based on the alphabetic representation of the predetermined pattern and the given melodic theme.
X:1
L:1/8
M:2/4
K:F
['F2 F2']  
X:1
L:1/8
M:2/4
K:F
 CC | F2 F2 AC | F2 F2 | Ac | f2 f2 | G4 | cd | BA G2 cc | AG F2 | FA | G2 B(3c/d/c/ | c2 z2 | ff | 
 eB B2 dd | cA F2 | cc | B2 G4 | G4 |]  