Craft a musical piece that abides by the prescribed structural guidelines and the given theme.
X:1
L:1/8
M:2/4
K:C
['E>F GG AA G2 (c/>B/)(c/>d/) e(f/d/)', 'c2 fede fe d2 fe dc BA'  
X:1
L:1/8
M:2/4
K:C
 E>F GG | AA G2 | (c/>B/)(c/>d/) e(f/d/) | c>B c2 :| | fede | fe d2 | fe dc | BA G z!D.C.! ||  