Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:4/4
K:A
['', 'c/d/ ec f/e/d/c/ eAA c/d/ eA e2', 'dBBc/d/ eaca eAAc/d/ eaca fBBc/d/ eaca eAcA']  
X:1
L:1/8
M:4/4
K:A
 c/d/ |: ec f/e/d/c/ eAA c/d/ | eA e2 d/c/ dBB c/d/ | eAcA eAcA | d/e/f/d/ c/d/e/c/ dBBc/d/ :| 
 eaca eAAc/d/ | eaca fBBc/d/ | eaca eAcA | d/e/f/d/ c/d/e/c/ dBB :|  