Utilize the alphabetic system of the specified musical pattern and the supplied melodic theme to create a piece of music.
X:1
L:1/16
M:3/8
K:G
["GB (d2B2).g2 (d2B2).g2 (d2g2b2) d'4 (e'd') (c'd').c'.b.a.g", "G4 A2 dfa2a2 (a2f2)d'2 a2f2d2 (ag)e2 e2", '(e4 d2)', "c'2c'bc'2 b4 g2"]  
X:1
L:1/16
M:3/8
K:G
 GB | (d2B2).g2 | (d2B2).g2 | (d2g2b2) | d'4 (e'd') | (c'd').c'.b.a.g | fedcBA | (GFEDEF) | G4 :: 
 A2 | dfa2a2 | (a2f2)d'2 | a2f2d2 | (ag)e2 e2 | A^ce2e2 | g2>f2ed | d^cBABc | d4 :: d=c | (B4 d2) | 
 (e4 d2) | (g4 f2) | (e4 d2) | c4 B2 | A2c2e2 | d4 F2 | G4 :: d2 | c'2c'bc'2 | b4 g2 | fagfed | 
 gfgbe'd' | c'2c'bc'2 | b4 g2 | (fagfed) | g4 :|  