Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
['F2 z2 dedc BAGF A2', 'F2 F2 Acde f2 cd edcB AGFE']  
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
"^secundo" z z | FGFD F2 z2 | dedc BAGF | A2 AG F2 ED | C2 C2 C2 z2 | FGAD F2 z2 | dedc BAGF | 
 A2 GF G2 FE | F2 F2 F2 :: F2 Acde f2 cd | edcB AGFE | cdcA E2 Bc | d2 c2 c2 z2 | FGFD F2 z2 | 
 dedc BAGF | A2 G2 AGFE | F2 [A,F]2 [A,F]2 z2 :|  