Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
M:6/8
K:Dmix
['dB{G}A c{e}c{G}c{gde} dB{G}A', 'edB |{g}', 'aA{d}A edB |{g} efg{g} e{gde} dBe |1{g}']  
X:1
L:1/8
M:6/8
K:Dmix
 e{g}e{A}e{gde} dB{G}A | c{e}c{G}c{gde} dB{G}A | e{g}e{A}e{gde} dBe | 
{g} A{d}A{e}A{g} ABde{g}e{A}e{gde} dB{G}A | c{e}c{G}c{gde} dB{G}A |{gcd} ceA{gde} dB{G}A | 
{gef} ec{G}A{gAGAG} A2{d} A :| ag{a}e gae | gae{gef} edB |{g} def{gf} g2 e | 
{g} fdB{gBd} BAGag{a}e gae | gae{gef} edB |{g} efg{g} e{gde} dBe |1 
{g} A{d}A{e}A{gAGAG} A2{gef} e :|2{g} A{d}A{e}A{g} ABd || e{g}e{A}e{gde} dB{G}A | 
 c{e}c{G}c{gde} dB{G}A |{gcd} ceA{gde} dB{G}A |{gef} ec{G}A aede{g}e{A}e{gde} dB{G}A | 
 c{e}c{G}c{gde} dB{G}A |{gcd} ceA{gde} dB{G}A |{gef} ec{G}A{gAGAG} A2{d} A :| ag{a}e aA{d}A | 
 !fermata!ae{A}e{gef} edB |{g} def{a} gB{G}B |{gde} dB{d}A{gde} dB{d}Gag{a}e aA{d}A | 
 !fermata!ae{A}e{gef} edB |{g} efg{g} e{gde} dBe |1{g} A{d}A{e}A{gAGAG} A2{gef} e :|2 
{g} A{d}A{e}A{gAGAG} A3 ||  