Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:6/8
K:Gmin
['A/B/cd B', '[EC]3 [FD]3', '[AF] (3[FD]/[GE]/[FD]/ [EC]2- [EC][EC][EC] [FD][FD][FD] [FD][GE]>[AF] (3[EC]/[FD]/[EC]/']  
X:1
L:1/8
M:6/8
K:Gmin
"^Intro" | A/B/cd |"Gm" B d2"D7" A/B/cd |"Gm" B d2"D7" ^f/g/ab |"Gm" g d2"D7" A/B/cd |"Gm" G3 z3 | 
 z3 z3 ||"^verse" |:"Gm" B3-"D7" BA/G/^F/A/ |"Gm" G/^F/ G2-"^(G7)" G2 z |"Cm" G3- GG/^F/G/E/ | 
"Gm" D/^C/ D2- D2 z |"D7" C3- CC/=B,/C/D/ |"Gm" _B,3 B,2 z |"Cm" A,3-"D7" A,A,/^G,/A,/B,/ |1 
"Gm" G,3 z3 :|2[K:G]"G" G,3"^refrain" :: z [GB,][AC] |"G" [GB,]3-"^(D7)" [GB,][EC][FD] | 
"G" [DB,]3- [DB,][DB,][EB,] | [EB,][EB,][FB,] [FB,][FB,][DB,] |"Am" [EC]3- [EC]3 | 
"D7" [FD]3 [GE]2 [AF] | (3[FD]/[GE]/[FD]/ [EC]2- [EC][EC][EC] | [FD][FD][FD] [FD][GE]>[AF] | 
"G" (3[EC]/[FD]/[EC]/ [DB,]2- [DB,][GB,][AC] |"G" [GB,]3-"^(D7)" [GB,][EC][FD] | 
"G" [B,D]3- [B,D][GB,][AC] |"E7" [BD][BD]>[^A^C] [BD][cE][d=F] | 
"Am" (3[BD]/[cE]/[BD]/ [AC]2- [AC][AC][BD] |"C" [cE]3"Cm" [A_EC]2 [BEC] | 
"G" [G-B,D-]3 [GB,D][EC][FD] |"D7" [DC]3- [DC][AFC][BFC] |"G"{BA} [GB,D]3 z3 | z3 z3 |]  