Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:2/4
K:A
['c2 BA']  
X:1
L:1/8
M:2/4
K:A
 A/B/ | c2 BA | Be B>A | A3 B | eB ef | g3 f>e | e3 B | eB ed | c2 BA |{A} G2 AB | c2 BA | Be B>A | 
 A3 ||  