Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:2/4
K:G
['[cA]2- [cA][BG]', '', '[fd]2 [fd][fd]', '[fd]3 [ec]']  
X:1
L:1/8
M:2/4
K:G
|:"^Slowly:""G" [dB]2 [dB][dB] | [dB][cA] [cA][BG] |"D7" [BG][AF] [AF][BG] | [cA]2- [cA][BG] | 
 [AF][BG] [cA][BG] |"A7" [cA][BG] [AF][GE] |"D" [AF]2 [AF][AF] | [AF]4 :| [GE] |:"D7" [AF]3 [BG] | 
 [cA]2- [cA][BG] | [BG][AF] [AF][BG] | [cA]2- [cA][BG] | [AF][BG] [cA][BG] | 
"A7" [cA][BG] [AF][GE] |"D" [AFD]2 [AFD][AFD] | [AFD]4 ::[K:C]"^Faster:""C" [ge]2 [ge][ge] | 
 [ge][fd] [ge][ec] |"G7" [fd]2 [fd][fd] | [fd][ec] [dB][ec] | [fd]2 [fd][fd] | 
"D7" [ec][dB] [ec][cA] |1"G7" [dB]2 [ec]2 | [fd]2 [^f^d]2 :|2"G" [dB]2 [dB][BG] | [dB]3 [cA] |: 
"G7" [dB]3 [ec] | [fd]3 [ec] | [ec][dB] [dB][ec] | [fd]3 [ec] | [dB][ec] [fd][ec] | 
"D7" [fd][ec] [dB][cA] |1"G" [dBG]2 [dBG][BGD] | [dBG]3 [cA] :|2"G" [dBG]4 |]  