Develop a piece of music conforming to the stated structure and theme.
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
['A2 AG', 'd2 fd adfd'  
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
 A2 AG FGAB | =cG G2 EG G2 | A2 AG FDFA | =cdeg fd d2 :| d2 fd adfd | =c2 ec gcec | d2 fd adfd | 
 ^ceag fddA | d2 fd adfd | =c2 ec gceg | afge fded | ^cdeg fddB ||  