Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
M:2/4
K:D
['d2 ed/e/', 'ad df/d/ ge eg']  
X:1
L:1/8
M:2/4
K:D
 A/B/ | d2 ed/e/ | fd d/d/>e/d/4 | Be e/f/e/d/ | cA A>B | d2 ed/e/ | fe/d/ cB/A/ | Bg f/e/d/c/ | 
 d2 d>d :: g | ad df/d/ | ge eg | fB Bc/d/ | e/f/e/d/ cB/A/ | ad df/d/ | ge eg | fe/d/ ed/B/ | 
 d2 d<d :|  