Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
Q:1/2=80
M:4/4
K:C
['E<GGA c>ded', 'e<cg<e e>fga']  
X:1
L:1/8
Q:1/2=80
M:4/4
K:C
 C | E<GGA c>ded | c>AGA d>edD | E<GGA c>ded | e/f/g d>e cCC :: g | e<cg<e e>fga | e<cg<c eddg | 
 e<cg<e e>fga | e/f/g d>e cCC :|  