Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
M:4/4
K:C
['', 'TB2 A', 'gbg faf gfg']  
X:1
L:1/8
M:4/4
K:C
 .abc ||[M:12/8][K:Emin] (3Tdef | gdB TB2 A TB2 A Bcd | efe edB dBA ABd | gdB TB2 A TB2 A Bcd | 
 efg fed e3 :: e2 f | gbg faf gfg edB | edB Bed BAA A2 (e/f/) | gbg faf gfg efg | aga Bcd e3 :|  