Develop a piece of music conforming to the stated structure and theme.
X:1
L:1/8
M:34/44
K:Ab
['[GB,]2 [GB,][AC] [BD]2 [AC]2 [AC][BD] [cE]2', '[A,C][CA] [Ec]4 [CA]2'  
X:1
L:1/8
M:34/44
K:Ab
|:"Ab" [A,C]2 [A,C][G,=B,] [A,C][CA] | [Ec]4 [CA]2 |"Db" [DB][Fd] [Fd]2"Ab" [CA][Ec] [Ec]2 | 
"Ab" [A,C]2 [A,C][G,=B,] [A,C][CA] | [Ec]4 [CA]2 |"Eb7" [B,G][DB] [DB]2"Ab" [CA]2 z2 :: 
"Eb7" [GB,]2 [GB,][AC] [BD]2 |"Ab" [AC]2 [AC][BD] [cE]2 |"Eb7" [GB,]2 [GB,][AC] [BD]2 | 
"Ab" [AC]2 [AC][BD] [cE]2 |"Ab" [A,C]2 [A,C][G,=B,] [A,C][CA] | [Ec]4 [CA]2 | 
"Db" [DB][Fd] [Fd]2"Ab" [CA][Ec] [Ec]2 |"Ab" [A,C]2 [A,C][G,=B,] [A,C][CA] | [Ec]4 [CA]2 | 
"Eb7" [B,G][DB] [DB]2"Ab" [CA]2 z2 :|  