Compose a piece of music by integrating the assigned letter representation and provided tune.
X:1
L:1/16
Q:1/8=150
M:2/4
K:none
['', 'B>GA>F G2g2 |1', 'B2>A2 G2 z g f>de>^c', '(3def g>dB>G e2>e2 d>e (3dcB A2>c2 B>GA>F']  
X:1
L:1/16
Q:1/8=150
M:2/4
K:none
[K:G]|: B>GA>F G2g2 | f>de>^c d2>=c2 | B>GA>F G2g2 |1 f>de>^c d2>=c2 :|2 f>de>^c d2 (3def |: 
 g>dB>G e2>e2 | d>e (3dcB A2>c2 | B>GA>F G2g2 |1 B>GA>F G2 (3def :|2 B>GA>F G2 || c2 | 
 B2>A2 G2 z g | f>de>^c d2>=c2 | B2>A2 G2 z g | f>de>^c d2 (3def |: g>dB>G e2>e2 | 
 d>e (3dcB A2>c2 | B>GA>F G2g2 |1 B>GA>F G2 (3def :|  