Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
M:7/8
K:G
['[cA]2 [BG] [AF][BG]', '[Ac]4- [Ac]7 [GB]2 [Ac] [Bd]2 [Bd]2 [ce]2']  
X:1
L:1/8
M:7/8
K:G
|:"^Instr.""C" [ec]2 [dB]"^(Am)" [cA][dB] [ec][cA] |"G" [dB]2 [cA]"^(Em)" [BG][cA] [dB][BG] |1 
"D7" [cA]2 [BG] [AF][BG] [cA][AD] |"G" [BG]2 [AD] [BG][cA] [dB]2 :|2 
"D7" [cA]2 [BG] [AF][BG] [cA][AF] |"G" [BG]7- | [BG]3 z4 ||"^Vocal" |"G" [DG]2 [GB] [GB]2 [GB]2 | 
"Am" [Ac]2 [Bd] ([ce][Bd]) ([Ac][GB]) |"D7" ([Bd] [Ac]2) [Ac]4- | [Ac]7 | 
"G" [GB]2 [Ac] [Bd]2 [Bd]2 |"Am" [ce]2 [Bd]"D7" ([Ac][GB]) ([Ac][Bd]) |"G" ([Ac] [GB]2) [GB]4- | 
 [GB]7 |:"G" [GB]2 [Bd] [Bd]2 [Bd]2 | [df]2 [df] ([ce][Bd]) ([Ac][GB]) |"Am" ([Bd] [Ac]2) [Ac]4- | 
"D7" [Ac]7 |"G" [GB]2 [Ac] [Bd]2 [Bd]2 |"Am" [ce]2 [Bd]"D7" ([Ac][GB]) ([Ac][Bd]) | 
"G" ([Ac] [GB]2) [GB]4- | [GB]7 :|  