Compose melodious music utilizing the prescribed letter representation and integrating the given thematic element.
X:1
L:1/8
M:3/4
K:Dmix
['z (3efg', '(3cde d', 'A/ (3cde d c2 A (3AGE{F} G2']  
X:1
L:1/8
M:3/4
K:Dmix
|: (E3 E) (3Bcd | e3 z (3efg | a3 z (3age | f d2 z (3efg | (a3 a) (3agf | g/f/ d2 z dB | 
{d} (e3 e) gf |{d} e3 z3 :| d (A2 A2) c | B (G2 G) Bc | A3 z3 | d (A3 A) c | B (G2 G) AG | 
{D} E3 z3 | (3Bcd{d} e3 z | (3cde d c3 | (3cde d c2{G} A | (3AGE{f} G2 z2 |{d} e3 e dc | 
{G} A2 G>A{G} (A2 | A2) z4 |:{g} (a3 a) (3age |{f} (g3 g) (3gab |{g} (a3 a) (3age | g{d} e2 z3 | 
 (3cde d .c2 z/ A/ | (3cde d c2 A | (3AGE{F} G2 z2 | (3Acd (e2 =f2) | (3eee d c/ A2{F} (G/ | 
 G3) B{G} (A2 | A2) z4 :|  