Compose a piece of music that follows the specified structure and incorporates the given theme.
X:1
L:1/8
M:2/4
K:Amin
['EAAB c2', 'd eaag e^fge dBGB AG ED eaag'  
X:1
L:1/8
M:2/4
K:Amin
"^moderato" A/G/ | EAAB | c2 Ac | BAGB | dBGA |"^5" EAAB | c2 d2 | e^f/g/ dB | BAA :| d | 
"^9" eaag | e^fge | dBGB | AG ED |"^13" eaag | e^fga | bagb | a2 ab |"^17" [ac']bag | e^fge | 
 dBgd | BAAG |"^21" EAAB | c2 d2 | e^f/g/ dB | BA A2 |]  