Compose a piece of music following the specified structure and theme.
X:1
L:1/8
M:6/8
K:C
['d e2 c', 'B2 A GBA G2'  
X:1
L:1/8
M:6/8
K:C
 G | c2 d e2 c | f2 d e2 c | c2 d edc | (B3 d3) | c2 d e2 c | f2 d e2 c | efg fed | (c3 [dc']) z || 
 f | edc B2 A | GBA G2 .f | .e.d.c .B.A.G | A3 (f3 | e)dc B2 A | GBA G2 f | efg fed | c3 [ec'] z ||  