Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
M:2/4
K:A
['EF/G/ A/G/A/B/', 'z A c>A .F.A c/B/A/B/ ce A>F', 'e2 ^d{f} e2', 'GAB AG/F/ E2 e2 f2 e>c A2', 'e/d/c/d/ dB f/e/^d/e/']  
X:1
L:1/8
M:2/4
K:A
 D | EF/G/ A/G/A/B/ | c/B/A/B/ c2 | EF/G/ A/G/A/B/ | c/B/A/F/ E2 z :: A | c>A .F.A | c/B/A/B/ ce | 
 A>F Ef/g/ | a/g/f/^e/ ff/g/ | .a.g.f.e | d/B/c/A/ B/A/F | A/G/A/F/ Ef | e/c/d/B/ A :| 
[M:6/8]{f} e2 ^d{f} e2 d |{f} e3 [Ee][Aa][cc'] | [Bb]2 [^A^a] [Bb]2 [ee'] | [ee']3 [cc'][Bb][Aa] | 
{f} e2 ^d{f} e2 df |{f} e3 eac' | ba b2 [ee'] | a3 a2 ||[M:2/4] e2 f2 | e>c A2 | GAB | AG/F/ E2 | 
 e2 f2 | e>c A2 | .B>.A.B>.c.d>.e.f>.g | aaa a2 || e{f}e/^d/ ea | [cc']3 [cc'] | 
 [cc']/[Bb]/[Aa]/[Bb]/ [Aa]/[Bb]/[cc']/[Bb]/ | [Aa][cc'] e2 | e{f}e/^d/ ea | c'3 c' | 
 e'd'/c'/ d'c'/^b/ | c'2 be | e/d/c/d/ dB | f/e/^d/e/ cA | e/d/c/d/ dB | f/e/^d/e/ e2 | 
 e{f}e/d/ ea | c'3 d' | c'/b/^a/b/ e'e | gb a2 ||  