Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
Q:3/8=100
M:6/8
K:G
['E2 E E2 c AFD DEF']  
X:1
L:1/8
Q:3/8=100
M:6/8
K:G
"G" dBG GAB |"C" E2 E E2 c |"D" AFD DEF |"G" G2 G G2 g |"G" dBG Bcd |"C" E2 E E2 c |"D" AFD DEF |1 
"G" GBA G3 :|2"G" GBA G2 g/a/ |]"G" bgb"D" afd |"C" efg gfe |"G" dBg dBG |"D" AFD D ga | 
"G" bgb"D" afd |"Em" efg"D" gfe | faf"A" ge^c |"D" d3"^(G7)" de=f |"C" ece"G" dBd |"C" cac"G" BgB | 
"Am" Ace"G" dBG |"D" FAF DEF |"G" GAB"Am" EFG | ABc"D" def |"G" gdB"D" cAF |"G" G3 G2 g |]  