Craft a musical composition that adheres to the specified musical theme and letter-based structure.
X:1
L:1/8
Q:1/4=120
M:2/2
K:A
['([de-]2 [ee]2) [ee]f [ee]cAA ||S fafd', 'c2 ([de-][ee]-)[ee][ee] [ee]2 [ee]f ecBA', 'AB c2 [ce]B A2 AA AcB(E F)A[Ae]A']  
X:1
L:1/8
Q:1/4=120
M:2/2
K:A
"^Very Quick" ([de-]2 | [ee]2) [ee]f [ee]cAA ||S fafd [Ae]2 c2 | ([de-][ee]-)[ee][ee] [ee]2 [ee]f | 
 ecBA [AA]2 ([GA-][AA]-) | [AA](Bc)d [ee]2 [ee]2 | fafd [Ae]2 c2 | 
 ([de-][ee]-)[ee][ee] [ee]2 [ee]f | ecBA [AA]2 || AB | c2 [ce]B A2 AA | AcB(E F)A[Ae]A | 
 (FA)AA (AB)cc |1 e(cB)A A2 :|2 e(c)BA [Ae]2- ||  