Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
Q:1/2=100
M:3/2
K:D
['(ef) (gf)(ed) (fg) a2', '(AB) (cB)(AG) F4']  
X:1
L:1/8
Q:1/2=100
M:3/2
K:D
 Tf2 (ef) (gf)(ed) (fg) a2 | c'2 e4 d2 c2 A2 | f2 (ef) (gf)(ed) (fg) a2 | A2 d4 A2 F2 D2 :: 
 TB2 (AB) (cB)(AG) F4 | E2 e4 d2 c2 A2 | B2 (AB) (cB)(AG) F4 | D2 d4 A2 F2 D2 :|  