Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/8
M:2/4
K:none
['d/d/d d/d/d bb g2 f/f/f ed', 'Ba a/g/f', 'c4 A2 c2 f3 e e2 d2', 'gg a>g ee f>e dd']  
X:1
L:1/8
M:2/4
K:none
[K:C]"C" e>e e>e | ef g2 | c>c c>c | cd e2 |"G7" f>f f>f | fg a2 | de f2 |"C" ag e2 :| 
[K:G]"D7" d/d/d d/d/d |"G" bb g2 |"D7" f/f/f ed |"G" b/b/b ag |"D7" d/d/d d/d/d |"G" bb g2 | 
"D7" f/f/f ed |"G" g2"G7" =f2 ||[K:C]"C" eG eG |"G7" Ba a/g/f | Ba a/g/f |"C" eg g/f/e | eG eG | 
"G7" Ba a/g/f | db a/g/B |"C" cc c z |:[K:F]"F" A2 c2 | f3 e |"Gm" e2 d2 | g3 f |"C7" f2 e2 | 
 c'2 b2 |"F" af Ad | c4 | A2 c2 | f3 e |"Gm" e2 d2 | g3 f |"C7" f2 e2 | c'3 b |"F" ac"C7" g>e | 
"F" ff f z :|"F" c'2 a2 |"Bb" f2 d2 |"F" c2 A2 | z c ea |"C" g2 e>g | c'2 e>g |"G7" ag fd | 
"C" c2 f>f |:"C7" e2 b2 | b2 e>e |"F" f2 a2 | a2 f>f |1"C7" e2 c'2 | c'2 b2 |"F" ba ga | f2 f>f :|2 
"Bb" d2 a>a |"F" c2 b>b |"C7" c'b de |"F" f2 z2 |:[K:C]"C" gg a>g | ee f>e |"G7" dd ed |"C" ce G2 | 
 gg a>g | ee f>e |"G7" dd e>d |"C" c2 z2 :|  