Formulate a musical piece by utilizing the specified motif and alphabet-based structure.
X:1
L:1/4
M:3/4
K:C
['c z', 'd2 c', 'c e3 d2 c f3/2 f/ f']  
X:1
L:1/4
M:3/4
K:C
 G/G/ |"G7" G3 | F3 | (B3 | B) z A/A/ | A3 | G2 F |"C" E3 | c z c/c/ | e3 | d2 c |"Dm" B3 | 
 A z G/G/ |"G7" G A/G/ F/G/ | B A/G/ F/D/ |"C" C z c | c z z |:"G7" d/d/ d B | e d/d/ d | 
"C" c z E | A z G |"G7" D2 B | D2 B |1"C" E2 c | E2 c :|2"C" c3/2 c/ c | c z z ||[K:F]"F" c3 | f3 | 
"C7" e3 | d2 c | e3 | d2 c |"F" f3 | d2 c | c3 | f3 |"C7" e3 | d2 c | e3 | d2 c |"F" f3/2 f/ f | 
 f z z |]  