Create harmonious melodies following the given letter notation and incorporating the designated theme.
X:1
L:1/8
M:3/4
K:G
['g2 |{e} d3 B (A/G/A/B/) G4 g2', 'b3 a', 'e2 f', "(Bcd) efg aeg Tf3 d2 b c'3"]  
X:1
L:1/8
M:3/4
K:G
 g2 |{e} d3 B (A/G/A/B/) | G4 g2 | Tf2 (a>f)(e>f) | d4 (de/f/) | g2 (g/a/b) Ta>g | f2 e2 (d>B) | 
{B} A4{c} B>d |{ef} g4 :: a>g |{g} f3 e{e}fa |{a} b4 a2 | (g2 f2) e2 |{e} ^d3 e f2 | g2 (ag)(fe) | 
 =d2 TBA B2 | b3 a g>f |{f} e4 Td>c | (B>A)(G>A)(B>c) |{Bc} d4 (3(dBd) | e3 f g>a |{g} f4 g>f | 
 e>g (e/d/B) A>d | B3 A (B/A/G) | g4 B/A/G | b3 a g>b | a>ga>b(g>a) |{ga} b3 a Tg>e | 
 d>e (d/B/A) G>B | A4 (g/a/b) | c'3 d B>d |{ga} b3 a Tg>e | d>g (e/d/B) TA>G | G4 :: 
[M:6/8]"^Giga""_Brisk" g | d2 c BcA | G3 g3 | Tf2 e fga | d3- d2 f | (gb)g ac'e | (db)d (ca)c | 
 (Bg)B (Ag)f | g3- g2 :: b | afd dga | b3 e2 f | (gag) (fge) |{e} T^d3 B2 f | gbg faf | gbg faf | 
 gfe bB^d | e3- e2 f | (gf)e (dc)B | (ABc) (Bcd) | efg aeg | Tf3 d2 b | c'3 (edc) | b3 (dcB) | 
 A2 a (dgf) | g3- g2 :|  