Compose a piece of music that follows both the given musical theme and the letter-based structure provided.
X:1
L:1/16
Q:1/4=120
M:4/4
K:Cmin
['and G,2 C4 (c2G2) (A2{BA}GF){F} G4 C4', "(c'gef gecd)"]  
X:1
L:1/16
Q:1/4=120
M:4/4
K:Cmin
"^Eerie and hopeless" G,2 | C4 (c2G2) (A2{BA}GF){F} G4 | C4 (G2F2) (E2{FE}DC) (D2G,2) | 
 (C4 c2)G2 (A2{BA}GF) G2E2 | (FDAF D=B,G,G)({G} C4 C2) :| g2 | (c'gef gecd) (ecG=B cGEF) | 
 (GEC=B, CEGC) =B,DG=B dg=bd' | (c'gef gecd) (edG=B cGEC) | (FDAF D=B,G,G)({G} C4 C2)g2 | 
 (c'gef gecd) (ecG=B cGEF) | (GEC=B, CEGC) (=B,DG[A,A] GFED) | (CDEC FDGE) (AF=BG cGEC) | 
 (FDAF D=B,G,G)({G} C4 C2) ||  