Develop a piece of music conforming to the stated structure and theme.
X:1
L:1/8
M:2/2
K:G
['A2 (Ag)', 'eaaf gfed'  
X:1
L:1/8
M:2/2
K:G
 B | A2 (Ag) fde^c | A2 (Ac) BGGB | A2 (Ag) fdef |{a} gfgd BG G :| f | eaaf gfed | cAeA cdef | 
 eaaf gfef | gfgd BGGf | eaaf gfed | ^cAeA cdef | afge fdef | gfge BG G |]  