Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/4
Q:1/4=120
M:6/4
K:G
['G2 B B G B', 'd B G']  
X:1
L:1/4
Q:1/4=120
M:6/4
K:G
 D | G2 B B G B | F2 A A F A | G2 B B G B | d3 g2 D | G2 B B G B | F2 A A F ^D | E G E F A F | 
 E3 G2 :: B/c/ | d3/2 e/ d d B G | g3/2 f/ e d B G | d3/2 e/ d d B G | F3 A3 | D3/2 E/ D D B D | 
 E F G A F ^D | E G E F A F | E3 G2 :|  