Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:4/4
K:G
['d/c/B/A/ G>B GE E F G/G/G g>f', 'dg e/e/e a>g e>f gb dg Bg']  
X:1
L:1/8
M:4/4
K:G
 D |"G" G/G/G B>A BG GB |"Am" A/A/A e>d eA"D7" AB |"C" c>B c<e"G" d/c/B/A/ G>B | 
"Am" A/B/c"^(B7)" B>A"Em" GE E :| F |"G" G/G/G g>f gd dg |"Am" e/e/e a>g ae"D7" e>f | 
"C" g>a ge"G" d/c/B/A/ G>B |"Am" A/B/c"^(B7)" B>A"Em" GE E |] F |"G" G/G/G g>f gd dg | 
"Am" e/e/e a>g ae"D7" e>f |"Em" gb eg"G" dg Bg |"Am" A/B/c"^(B7)" B>A"Em" GE E |]  