Produce a musical expression that follows the indicated alphabetical structure while integrating the provided thematic material.
X:1
L:1/8
M:2/4
K:C
['Gc/e/ Gc/e/ fB d2 GB/d/ GB/d/', 'cB/A/ Gc', '^d=d eg cg dg Bg', 'cB/A/ Gc', 'd2 GB/d/ GB/d/']  
X:1
L:1/8
M:2/4
K:C
 Gc/e/ Gc/e/ | fB d2 | GB/d/ GB/d/ | eG c2 | Gc/e/ Gc/e/ | fB d2 | GB/d/ GB/d/ |1 c2 z2 :|2 c2 z || 
 c | cB/A/ Gc | cB/A/ Gc | BG dB | cGe c | cB/A/ Gc | cB/A/ Gc | BG dB | c2 z || e | fe ^d=d | 
 eg cg | dg Bg | egc e | fe ^d=d | eg cg | dg Bg | c2 z :| c | cB/A/ Gc | cB/A/ Gc | BG dB | 
 cGe c | cB/A/ Gc | cB/A/ Gc | BG dB | c2 z2 || Gc/e/ Gc/e/ | fB d2 | GB/d/ GB/d/ | eG c2 | 
 Gc/e/ Gc/e/ | fB d2 | GB/d/ GB/d/ | c2 z2 :|  