Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:2/4
K:F
['c2 A z']  
X:1
L:1/8
M:2/4
K:F
 c2 d2 | c2 A z | ccdd | c2 A z | BBGG | cc A2 | d>cBA | GG F2 |]  