Develop a musical piece using the given theme and incorporating the letter-based structure provided.
X:1
L:1/8
M:3/4
K:Gmin
['(g>a) b2 (b/4a/4g3/2) (g/4a/4b3/2) |{g} f2 (d>e)', '(TG>F) (D2 F2) .F2 (FE)(TD>C) (D2 G2)']  
X:1
L:1/8
M:3/4
K:Gmin
"^p" (g>a) | b2 (b/4a/4g3/2) (g/4a/4b3/2) |{g} f2 (d>e) f2 | (dcBA) (TG>F) | F4 (G>A) | 
 B2 (B/4c/4d3/2) (d/4c/4B3/2) | c2 (d^fgd) | (.c.B.A.G) (.G>.G) | G4 :| | (TG>F) | (D2 F2) .F2 | 
 (F>G)"^p" (FE)(TD>C) |"^f" (D2 G2) G2 | (G>A)"^p" (GF) (T=E>D) |"^f" (D2 B2) .B2 | 
 (B>c)(B>A)(G>A) | (F2 f2) .f2 | f4 (g>a) | b2 (b>ag>a) | (b2 d2) .d2 | (d>c) (B>cd>=e) | 
"^p" (f2 A2) .A2 | (B>A) (G>AB>c) | d2 A2 (A>G) | (GF) (T=E>D)(D>E) | D4 (d=e) | 
"^f" f2 (f/4g/4a3/2) (^f/4g/4a3/2) | g z g2 (fd) |"^p" (cABA) (TG>F) | F4 (G>A) | 
 B2"^f" (B/4c/4d3/2) (d/4c/4B3/2) | c2 (d^f)(g>d) | (.c.B.A.G)"^p" (.G>.G) | G4 |]  