Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:3/4
K:C
['ecd e3 ece d3 ecd A3 AAd']  
X:1
L:1/8
M:3/4
K:C
 ecd e3 | ece d3 | ecd A3 | AAd d3 | Acd e3 | edA c3 | cce d3 | cAc A3 |]  