Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/16
M:2/4
K:F
['Tf2(cf) BfAf', 'BGGB AFcF']  
X:1
L:1/16
M:2/4
K:F
|: Tf2(cf) BfAf | Tf2(af) gGG2 | Tf2(cf) BfAf |1 B>Gc>B AFF2 :|2 dbge aff2 |] AFcF dFcF | 
 (fdc)TA BGGB | AFcF dFcF | afge fFFB | AFcF dFcF | (fd)cTA BGGB | AFcF defg | afge fFF2 |]  