Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
M:4/4
K:C
['B^c d2 Bc dBAF', 'Beef gfed B2']  
X:1
L:1/8
M:4/4
K:C
[M:4/4][K:Emin] Dauge[Q:1/8=180] .E2 B^c d2 Bc | dBAF DEFD | E2 B^c d2 Bc | dBAF GEED | 
 E2 B^c d2 Bc | dBAF DEFD | afge fde^c | dBAF DEFD :| Beef gfed | B2 AF DEFD | Beef gfed | 
 B2 A^c BE E2 | Beef gfed | B2 AF DEFD | afge fde^c | dBAF BE E2 :|  