Develop a musical piece incorporating the designated alphabet-based pattern and the supplied melodic theme.
X:1
L:1/4
M:4/4
K:G
['d2 d2', 'e ^d']  
X:1
L:1/4
M:4/4
K:G
"G" d2 d2 | d2 G A | B2 B2 | B2 A G |"D7" F3/2 e/ e e | e2{fe} d c |"G" B3/2 g/ g g | g2 B c | 
 d2 d2 | d2 G A | B2 B2 | B2 e d |"A7" ^c3/2 c/ c B | A g f e |"D" d3/2 ^c/"A7" c c |1 
"D7" d z B c :|2"D" d z d d :|"D7" !>!c2 !>!d2 | !>!f2 !>!e2 |"G" d3 B | !>!d2 d d | 
"D7" !>!c2 !>!d2 | !>!f2 !>!e2 |"G" d3 b | g2 g g |"G7" !>!=f2 !>!g2 | !>!B2 !>!g2 |"C" e3 c | 
 e2 d c |"G" B2 c B |"D7" A2 B A |"G" G3/2 g/ z g | g z z2 ||[K:C]"G7" g3 ^f | g f d B | 
 G z d3/2 d/ | d z{/f} e ^d |:"C" e z{/f} e ^d | e z{/f} e ^d | e a g e |"G7" f2{/g} f e | 
 f z{/g} f e | f z{/g} f e | f d ^c d |"C" e2{/f} e ^d | e z{/f} e ^d | e z{/f} e ^d | e c B c | 
"F" a2 z2 |"G7" !>!g2 !>!f2 |"C" !>!e2{^de} f e |"G7" d2{^cd} g f |"C" e c/B/ c/d/ e/f/ | 
"G7" !>!g2"F" !>!f2 |"C" e2{^de} f e |"G7" d2{^cd} a B |1"C" c z{/f} e ^d :|2"C" c z z2 |]  