Construct a musical work following the provided guidelines and thematic elements.
X:1
L:1/8
M:4/4
K:Amix
['A<A e2 e>dB<g', 'A B A<a a>b a2 ga b2'  
X:1
L:1/8
M:4/4
K:Amix
 B | A<A e2 e>dB<g | G<G d>G B>AG<B | A<A e2 e>dB<g | a>eg>B{B} A2 A :: B | A<a a>b a2 ga | 
{ga} b2 a>g g>ee<g | d>e g>a b>ga<b | g<eg>B A2 A :|  