Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
Q:1/8=150
M:2/2
K:G
['GF GABc d2 fd gdBG', 'cBcd ec c2 AGAB ceaf gdBd cAFA'  
X:1
L:1/8
Q:1/8=150
M:2/2
K:G
"^simplified version" A | G2 GF GABc | d2 fd gdBG | E2 cB AGFA | GFGE DEFA |"^5" [GG,]2 GF GABc | 
 d2 fd gdBG | EG G2 AGFE | DGGF G3 :| A |"^17" Bdgd cBcd | ec c2 AGAB | ceaf gdBd | cAFA DAFA | 
"^21" Bdgd cBcd | egfa gecG | EG G2 AGFE | DGGF G3 :|  