Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/8
Q:1/2=100
M:2/2
K:A
['A2 Ac efec efec eaec']  
X:1
L:1/8
Q:1/2=100
M:2/2
K:A
 z | A2 Ac efec | efec eaec | dfdB cecA | GBBA GB B2 | A2 Ac efec | efec eaec | d2 dB c2 cA | 
 GBAG A2 A ::  