Develop a musical piece incorporating the designated alphabet-based pattern and the supplied melodic theme.
X:1
L:1/4
M:3/4
K:none
['[K:F] c', 'c A', 'c G d c f3/2 f/ f']  
X:1
L:1/4
M:3/4
K:none
[K:F] c |:"F" a2 a | f2 e/d/ | c2 c | A z z | .A d/c/ c | .A d/c/ c | A B/A/ A/B/ |"C7" G2 z | b3 | 
 g3 |"^(Bb)" f3/2 e/ d |"C7" c2 c |1 e d/c/ c |"Gm" B A/A/ G |"C7" c e/d/ c/e/ |"F" f z z :|2 
"C7" e e/d/ c/c/ | B A/A/ G/G/ |"F" F3/2 A/ c | f z z |]"F" A d/c/ c | A d/c/ c | A B/A/ A/B/ | 
"C7" G3 | G3/2 d/ c | A d/d/ c | c3/2 B/ G |"F" A z z | A d c | A d c |"Gm" B A3/2 G/ | G z z | 
"C7" G d c | G d c |"F" f3/2 f/ f | f z z |]  