Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
M:2/2
K:D
['cB ABcA', 'cB A2 f2 f2 ef gfga']  
X:1
L:1/8
M:2/2
K:D
 FE"A" |"D" DFBF AFBF | DFBF A2 FE | DEFG ABAF |"A" A2 c2 c2 cB |"A" ABcA B2 cB | ABcA BAcB | 
 ABcd egfe |"D" d2 dc d2 :| fg"^B1" |"D" a2 ab af d2 | A6 fg | a2 ab ag f2 |"G" g6 ef | 
"A" g2{f} ef g2{f} ef | gagf e2 ef | gagf edcB |"D" A6 |] fg"B2" |"D" a2 ab afdB | A2 AB A2 A2 | 
 [Fd]4"C" [E=c]4 |"G" [GB]6 A2 |"G" B2 b2 b2 ag |"D" f2 a2 a2 fd |"A" A2 ef gfec |"D" d2"^fine" |] 
[K:G] =c2"D7" B2 A2"C" |:"G" [GB]6 AB |"C" [Ec]6 cB |"D" A2 f2 f2 ef |"G" gfga gedc | 
"G" D2 B2 B2 AB |"C" E2 c2 c2 cB |"D" A2 f2 f2 ef |1"G" gfga g2 dc :|2"G" g6 |]  