Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
M:2/4
K:D
['AF DF', 'c B2 A z F A2 F']  
X:1
L:1/8
M:2/4
K:D
 A/A/ |"D" AF DF | AB AA/A/ | AF GF |"Em" G3 B/B/ | BG EG | Bc BB/B/ | Bd cB |"A7" A3 A/A/ | 
"D" AF DF | AB AA/A/ |"Em" BG EB | B3 B/B/ | BG EB |"D" AF DF |"A7" GE DC |"D" DF D :: z | 
"D" z d2 c | B2 A z | F A2 F |"A7" G2 E2 | z e2 d | c2 B z | A A2 A |"G" B2"A" A2 |"D" z d2 c | 
 B2 A z | F A2 F |"A7" G2 E2 | z e2 d | c2 B z | A B2 c |"D" d2 z :|  