Produce a musical work that intertwines the supplied melodic theme and the indicated alphabetical pattern.
X:1
L:1/4
Q:1/4=120
M:6/4
K:F
['G A2']  
X:1
L:1/4
Q:1/4=120
M:6/4
K:F
 F2 G A2 G | F E D- D C2 |[K:F] F2 G A2 B |[M:4/4] A2 G2 |[K:F] F4 |[M:6/4] F2 G A2 G | 
 F E D- D C2 |[K:F] F2 G A2 B |[M:4/4] A2 G2 |[K:F] F4 |[M:6/4] A2 A c2 B | A G A- A3 | c2 c d2 c | 
 B A G- G3 |[K:F] A2 c B2 A |[M:4/4] F G A2 | F2 A2 | A B2 A | G F F E | F4 |]  