Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:2/4
K:C
['B2 B2', 'A>G G3 B (e2 d2) E B/A/']  
X:1
L:1/8
M:2/4
K:C
 G |"^A""C" cE/E/ EA | G3 G | c>B cd |"G7" B3 B/c/ | d>c BA | B3 A | Bd cB |"C" (A2 G)G | 
 cE/E/ EA | G3 G | c>B c^c |"Dm" d3 d |"F" d !>!A2 c |"C/G" c !>!E2 A |"G7" A !>!G2 B | 
"C" .c2 .c2"^B" |:[K:G]"G" B2 B2 | B2 A>G | G3 B | (e2 d2) |"Am" c2 c2 | c2 B>G |"D7" A3 F | 
"G" Ge d2 | B2 B2 | B2 A>G | G3 B | (e2 d2) |"C" E !>!c2 B/A/ |"G" D !>!B2 A/G/ |"D7" .F !>!A2 F | 
"G" .G2"_>Teil A" .G2 ::[K:F]"^C""D7" A2 B2 |"Gm" D4 |"C7" E2 G2 |"F" C4 | d2 c2 |"C7" BC E2 |1 
 A2 G2 |"F" FE DC :|2 (AG) DE |"F" .F2 .F2 |]  