Construct a melodic piece using the designated alphabetic pattern and the provided musical theme.
X:1
L:1/8
M:4/4
K:C
['.abc ||[M:2/2][K:Bmin]', '(MBAF)A DAFA', 'bgaf dfaf gfeg', 'fdad bdad']  
X:1
L:1/8
M:4/4
K:C
 .abc ||[M:2/2][K:Bmin] (3(MBAF)A DAFA | DAFA BEEB | (MBAF)A DAFA | ABde fddB | (MBAF)A DAFA | 
 DAFA BEEB | (MBAF)A DAFA | ABde fddg || fa{b} (3a^ga bgaf | dfaf gfeg | fa{b} (3a^ga bgaf | 
 ABde fd (3dcd | fa{b} (3a^ga bgaf | dfaf gfeg | fgef dedB || ABde fddg | fdad bdad | fdad ceeg | 
 fdad bdad | ABde fddg | fdad bdad | fdad ceeg | fgef dedB | ABde fddB |]  