cantare solemus seems like it should be an accepted alternative.
i already reported "should be accepted" 3x so i am quitting the test since i will surely get a 4th and fail. will startup again later.
"Usually" and "often" are not the same thing.
Why isn't 'semper' acceptable as well as 'saepe'?
semper is more 'always', 'forever'
saepe is more 'often', 'frequently' (but not necessarily always)