Produce a musical arrangement that complies with the dictated structure and the suggested theme.
X:1
L:1/16
M:2/4
K:D
["va4 (^gaba) d'4 (c'd'e'd') f'4 (e'd'c'b) b2a2", 'd2e2f2g2 ^g2a2 z2 ua2', 'gfed cbag fgef'  
X:1
L:1/16
M:2/4
K:D
 va4 (^gaba) | d'4 (c'd'e'd') | f'4 (e'd'c'b) | b2a2 z4 | ve2f2g2^g2 | a2d'2 c'bag | f2a2 agfe | 
 d6 || uA2 | d2e2f2g2 | ^g2a2 z2 ua2 | gfed cbag | fgef d2A2 | d2e2f2g2 | ^g2a2 z2 ua2 | 
 ^g2d'2b2g2 | a6 || a2 | gfed cbag | fgef d2a2 | gfed cbag | fgef d2(de) | =f2f2f2f2 | 
 _b2b2b2 (bc') | d'2d'2 ^g2g2 | a6 (fg)"_D.C." |]  