Develop a tune according to the designated alphabetic musical pattern and the provided melody.
X:1
L:1/8
M:5/8
K:G
['DD [dB]2', '[GB,]3 [DB,][DB,] [GD]2 [GD][GD][AF] [BG]2 [BG][BG][cA] [dB]2']  
X:1
L:1/8
M:5/8
K:G
|: DD |"G" [dB]2 [dB][ec][dB] |"Am" [cA]3 [dB][dB] |"D7" [fd]2 [fd][ec][cA] |"G" [BG]3 DD | 
 [dB]2 [dB][dB][fd] |"Am" [ec]3 [af]/[ge]/[fd]/[ec]/ |"D7" [dB]2 [dB][dB][cA] |"G" [BG]3 :: 
 [GB,][AC] |"G" [BD]2 [BD][cE][BD] | [cE] [BD]2 [GB,][AC] | [BD]2 [cE][d=F][dF] | 
"Am" [cE]3 [cE][cE] | [cE]2 [cE][cE][cE] |"D7" [fA]2 [fA][fA][eG] | [dF]2 [cE][BD][AC] | 
"G" [GB,]3 :: [DB,][DB,] |"G" [GD]2 [GD][GD][AF] | [BG]2 [BG][BG][cA] | [dB]2 [dB][cA][BG] | 
"Am" [cA]3 [AE][AE] |"D7" [GE]2 [FD][AF][AF] | [GE]2 [FD][AF][GE] | [FD]2 [EC][DB,][CA,] | 
"G" [B,G,]3 :|  