Construct a musical composition utilizing the provided motif and conforming to the specified structure.
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
['z D', 'G2 z'  
X:1
L:1/8
Q:1/4=100
M:2/4
K:G
"^Andante" D |{F} GG{F} GG |{F} GA BG | AE FD | G2 z D | !turn!G>A BG | cd e!fermata!g | 
 dB A(B/A/) | G2- G z ||"^Song" D | .G.G .G.G | GA B>G | AE FD | G2 z D | GG GG | Gc e2 | 
 d2 ^c/d/=c/A/ | G2 z G | cc e>e | (d B2) B | cA Bd | A2 z D | G>F E>D | C>E !fermata!G2 | D2 B>A | 
 G3 |]  