Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
Q:1/4=100
M:2/4
K:D
['Tf3 e dfec', 'A>B c2 c>d efge Tf3 e d2']  
X:1
L:1/8
Q:1/4=100
M:2/4
K:D
 a2 a>g |{g} Tf3 e | dfec | dA FD | a2 a>g | Tf3 e | dfec | d4 |: A2 A>B | c2 c>d | efge | Tf3 e | 
 d2 d>e | f2 f>g | adec | d4 |:  