Compose tunes based on the given letter-based musical structure and the supplied motif.
X:1
L:1/4
Q:1/2=116
M:2/2
K:G
['B G A/B/']  
X:1
L:1/4
Q:1/2=116
M:2/2
K:G
|:"^A" z |"G" d2"D/F#" d d |"Em" B3/2 c/"G/D" d d |"C" e d"Am" c B |"D" A3 B |"Am" A G"D7" G F | 
"G" G3 :: G |"D" F D F G |"D" A2"G" B A |"Em" G/A/ B"A7" A G |"Bm" F3 F |"Em" E D"A7" E3/2 D/ | 
"D" D3 :: d |"G" B G"G7" G A/B/ |"C" c3 c |"G" B G"G7" G A/B/ |"C" c2-"D7" c d | 
"G" B G"G7" G A/B/ |"C" c3/2 d/"Am" e d/c/ |"G" B c/B/"D7" A3/2 G/ |"G" G3 :|  