Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
M:2/2
K:D
['f d3 edef dBAF E2 FE DEED', 'de f d3 dfaf bfaf gfec']  
X:1
L:1/8
M:2/2
K:D
|: f d3 edef | dBAF E2 FE | DEED AGFA | Bdef g2 ag | f d3 edef | dBAF E2 FE | DEED ABdf | 
 edBc d2 de :| f d3 dfaf | bfaf gfec | dfaf g2 fg | afdf e2 de | f d3 dfaf | bfaf gfec | 
 dBAF ABdf | edBc d2 de | f d3 dfaf | bfaf gfec | dfaf g2 fg | afdf e2 fg | a3 b afdf | 
 g2 fg edBc | dBAF ABdf | edBc d2 de ||  