Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/4
M:3/4
K:F
['G3/2 B/', 'z f d3/2 g/']  
X:1
L:1/4
M:3/4
K:F
"F" A F3/2 A/ | d2 c |"C7" B G3/2 B/ | e2 d | c G3/2 B/ | e2 b |"F" a f3/2 d/ | c2 z | A F3/2 A/ | 
 d2 c |"Gm" B G3/2 B/ | e2 d |"C7" B G3/2 B/ | e3/2 c/ d/e/ |"F" (f3 | f) z a ||"C7" g (d a) | 
 g2 (a/g/) |"F" (f c) g | f2 (g/f/) |"C7" e G B | e2 d |"F" d A d | c2 a |"C7" (g d) a | 
 g2 (a/g/) |"F" (f c) g | f2 (g/f/) |"C7" (e d c) | a2 g |"F" (f3 | f) z z ||[K:Bb]"Bb" f d3/2 g/ | 
 f3 | d c3/2 B/ |"F7" A3 | e c3/2 a/ | g3 | e d3/2 c/ |"Bb" d2 z | f d3/2 g/ | f2 z | 
"Eb" g e3/2 a/ | g3 |"F7" e a g |"Bb" f2 c/d/ |"F7" e A A |"Bb" B3 |]  