Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/4
M:3/4
K:none
['g z z', 'e g2 z :|2 B e d'  
X:1
L:1/4
M:3/4
K:none
[K:G]"G" d B g |"D7" f3 | c A e |"G" d3 | B A B |"D7" c3/2 d/ d |1 c B c |"G" B3/2 G/ G :|2 d e f | 
"G" g z z |:"D7" f/a/ a3/2 g/ | f f e |"G" d2 g | B2 g |"D7" f2 a |1 c2 f |"G" g2 b | d3 :|2 
 d b3/2 a/ |"G" g3/2 g/ g | g z z |:[K:C]"C" G3 | G c3/2 e/ |"F" A3 | A d3/2 c/ |"G7" B z a |1 
 B g f |"C" g c e | g2 z :|2 B e d |"C" c3/2 c/ c | c z z |]  