Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/16
M:2/4
K:A
['eccA BAFA', 'afec dcde fefg |1 afec B2B2 :|2']  
X:1
L:1/16
M:2/4
K:A
 (uAF)"^Segno" | eccA BAFA | EAce fgaf | eccA BAFA |1 EAcA B2 :|2 EAcA B2A2 |] vdcde fefg | 
 afbg afec | dcde fefg |1 afec B2B2 :|2 afec Bagf"^Segno" ||"_D.S." | |]  