Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/4
M:3/4
K:D
['A F']  
X:1
L:1/4
M:3/4
K:D
 A/A/ |"D" A F A/-A/ |"D" A2 A/A/ |"G" B A F |"D" A2 A |"G" B A B |"Bm" d2 F/F/ |"Em" E3- | 
"A" E2 || D/E/ |"Bm" F F F |"Bm" F2 E |"G" D D B, |"G" D2 D/E/ |"D" F A F |"A" E2 F/E/ |"D" D3- | 
"D" D2 :|  