Craft a musical piece that integrates the provided melodic theme and the corresponding alphabetical pattern.
X:1
L:1/8
Q:1/4=136
M:4/4
K:Ddor
['ADDF E/D/C/E/ D2 ADDB cBAG ADDF E/D/C/D/', 'GAGE ABcA B/A/B/c/']  
X:1
L:1/8
Q:1/4=136
M:4/4
K:Ddor
 ADDF E/D/C/E/ D2 | ADDB cBAG | ADDF E/D/C/D/ E2 | C2 CE GAGE :| ABcA B/A/B/c/ d2 | ABcA GAGE | 
 ABcA B/A/B/c/ D2 | C2 CE GAGE :|  