Produce music using the specified musical structure depicted in letters along with the provided musical theme.
X:1
L:1/8
M:4/4
K:G
['G<E EG DEGB', 'g>g (3gfe d/c/B/A/ GB', 'Aa g>e e<g dega ba (3aga baab', 'g>g (3gfe d/c/B/A/ GB']  
X:1
L:1/8
M:4/4
K:G
 G<E EG DEGB | (3AAA eA cAe<a | G<E EG DEGB | cABG A2 AB :| g>g (3gfe d/c/B/A/ GB | 
 A/B/c/d/ EA c<A ef | g>g (3gfe d/c/B/A/ GB | cABG A2 Aa | g<b e<g dgBd | G<g Aa B<b AB | 
 G<E EG DEGB | cABG A2 Aa || g>e e<g dega | ba (3aga baab | g<e e>g dega | b>a a<g a2 ab :| 
 g>g (3gfe d/c/B/A/ GB | A/B/c/d/ EA c<A ef | g>g (3gfe d/c/B/A/ GB | cABG A2 Aa | g<b e<g dgBd | 
 G<g Aa B<b AB | G<E EG DEGB | cABG A2 Aa ||  