Compose a piece of music that follows both the given musical theme and the letter-based structure provided.
X:1
L:1/16
M:4/4
K:G
['G6 AG FDCD F2F2']  
X:1
L:1/16
M:4/4
K:G
"^Andante" z2 FG A2A2 | G6 AG FDCD F2F2 | F6 FG A2c2 c2de | f6 gf edcA d2c2 | c6 FG A2c2 d2e2 | 
 f4 d2gf edcA d2c2 | c6 dc c2A2 G2F2 | G6 AG FDCD F2F2 | F6 ||  