Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/8
Q:1/4=60
M:2/2
K:F
['D F/F/F GG A>GFA G/G/G GA d>cdf', 'C d cdfg afga gfga gfcf cfaf']  
X:1
L:1/8
Q:1/4=60
M:2/2
K:F
 D | F/F/F GG A>GFA | G/G/G GA d>cdf | F/F/F FG A>GFA | G2 AGF D2 C :: d | cdfg afga | gfga gfcf | 
 cfaf gcbf | gcbf g2 f :|  