Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:9/8
K:Gmin
['b2 gf dcB cc dc BGF GG', 'b2 gf']  
X:1
L:1/8
M:9/8
K:Gmin
|: b2 gf dcB | cc dc BGF | GG BG FGB | cc Bc dfg | b2 gf dcB | cc dc BGF | GG BG FGB | 
 cc BA F G2 :: b2 gf dfg | b2 gf dbg | bc' c'c' bc'd' | c'2 gb c'd'g | b2 gf dfg | b2 gf dbg | 
 bc' c'c' bc'd' | c'2 bg f g2 :|  