Utilizing the provided musical theme and letter-based structure, compose a piece of music.
X:1
L:1/8
Q:1/8=150
M:4/4
K:G
['(3(DEF) G2 G>F G>Bd>e d>cB>A', 'G2 B>c']  
X:1
L:1/8
Q:1/8=150
M:4/4
K:G
"^(Twelve Up,  Portobello Hornpipe)" (3(DEF) | G2 G>F G>Bd>e | d>cB>A G>AB>G | A2 A>G A2 G>A | 
 B>A (3(BAG) E2 (3(DEF) | G2 G>F G>Bd>e | d>cB>A G>AB>c | d>BG>B c>AF>A | A2 G2 G2 |] B>c | 
 d2 d2 d2 e>f | g>fe>d e3 d | e>dc>B c>BA>G | F>GA>F D2 B2 | c2 e>c B2 d>B | A>B (3(cBA) G2 B>c | 
 d>BG>B c>AF>A | A2 G2 G2 ||  