Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
M:3/4
K:C
['d2 fd']  
X:1
L:1/8
M:3/4
K:C
 gg d2 fd | cd f2 a2 | gg d2 fd | cG A2 A2 | cc d2 fd | cG A2 c2 | cc d2 fd | cG A2 A2 | gagded | 
 Bc e2 a2 | gagded | cA A2 G2 | cdcded | ce e2 d2 | cBcded | cA A2 G2 |]  