Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
M:9/8
K:G
['cFA cd/c/B/A/', 'c2 f eAA', 'cec e/f/ge', 'FB/c/d AB/c/d', 'c2 F', 'dBA c2 F A2 F fcA B2', 'BGG cFA cd/c/B/A/ fcA B2 G B/c/d/c/B/A/']  
X:1
L:1/8
M:9/8
K:G
|: c2 A cd/c/B/A/ cAA | cFA cd/c/B/A/ BGG | cFA cd/c/B/A/ fcA | B2 G B/c/d/c/B/A/ BGG :: 
 c2 f eAA gAA | c2 f eAA BGG | c2 f eAA gAA | B2 G B/c/d/c/B/A/ BGG :: g2 e cec e/f/ge | 
 cec e/f/ge d/c/B/c/d/B/ | g2 e cec e/f/ge | dBg GB/c/d/c/ dBG :: FB/c/d AB/c/d AB/c/d | 
 FB/c/d AB/c/d GB/c/d | FB/c/d AB/c/d AB/c/d |1 GB/c/d AB/c/d GB/c/d :|2 B2 G B/c/d/c/B/A/ BGG |: 
 c2 g e/f/g/e/g ecg | e/f/g/e/g ece dBd | c2 a gcg ece | dBg GB/c/d/c/ dBG :: c2 F c2 F Acf | 
 c2 F A2 F dBA | c2 F A2 F fcA | B2 G B/c/d/c/B/A/ BGG :: 
"^Variation for First Part" c2 A cd/c/B/A/ cAA | cFA cd/c/B/A/ BGG | cFA cd/c/B/A/ fcA | 
 B2 G B/c/d/c/B/A/ BGG :|  