Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
['', 'AFFE F2 DE', 'feeg fedc BcdB ABde fddB A2 AB']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
 dB |: AFFE F2 DE | F2 FE FGAB | AFFE F2 DE |1 FBBA FE E2 :|2 FAEG FD D2 || A3 B AF F2 | 
 ABde feeg | fedc BcdB | ABde fddB | A2 AB AF F2 | ABde feeg | f2 af efdf | afea fd d2 :|  