Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/4
M:3/4
K:G
['e d2', 'g f']  
X:1
L:1/4
M:3/4
K:G
"G" d2 e | d2 B |"D7" d2 A | d2 z | d2 b | a2 c |"G" B2 a | g2 z | d2 e | d2 B |"D7" d2 A | d2 z | 
 d2 b | a2 d |"G" (g3 | g) z z ||"A7" a2 ^c | a2 ^c |"D" g f e | d2 z |"B7" b2 ^d | b2 ^d | 
"Em" a g f | e2 z |"Am" e2 c' |"D7" b2 a |"G" a g d | B3 |"D7" g f e | c3 |"G" a g d | B3 | 
"Am" e2 c' |"D7" b2 a |"G" a g d | B3 |"D7" g f e | d b a |"G" (g3 | g) z g ||[K:C]"G7" a3 | 
 a B3/2 B/ |"C" c3 | z e d/c/ |"G7" (B g) g | z f e/d/ |"C" (e c') c' | z g ^g |"G7" a3 | 
 a B3/2 B/ |"C" c3 | z e e |"D7" d2 c' | b2 a |"G" (g3 | g) z g/g/ ||"G7" g f b | d'2 d'/d'/ | 
"C" d' c' g | e2 a/a/ |"G7" a B d | a2 a/a/ |"C" a c e | a2 g/g/ |"G7" g f b | d'2 d'/d'/ | 
"C" d' c' g | e2 b/b/ |"G7" b f a/a/ |"C" a e g/g/ |"G7" g B g |"C" c z z |]  