Develop a musical piece that combines the given theme and letter-structured outline.
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
['G2 BG EGDC B,DGB AGAB', 'BGdG edef']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:G
 G2 BG EGDC | B,DGB AGAB | c2 ec B2 dB | cABG AGEF | G2 BG EGDC | B,DGB AGAB | cdef gfge | 
 dBAc BG G2 :| BGdG eGdG | BGdB cAAc | BGdG edef | gedc BGGA | BGdG edef | g2 fg afdf | 
 g2 fg egdB | cAdc BG G2 :|  