Is the tutorial matter

Is the tutorial matter
 

Students enrol on the net, but sometimes depending on the nature of the course, the timeslots might change and some tutorials have to be cut down and some students have to switch to other classes. So is it natural English to say?:

-Is the tutorial matter settled? Or do we have to deal with it in the first lesson?

Your selection of words is natural English.

Would it be the equivalent of "the subject of the tutorial"?

The 'matter of the tutorial' works just as well as the original suggestion.
A good substitution for 'matter' could be 'question', just like the Spanish cuestión, or 'issue', but the latter has the added nuance that it was more of a problem than a 'matter'. However, if it was more of a problem, then 'issue' would be a better choice than 'matter'.

Although 'topic' and 'subject' are sometimes synonyms of 'matter', in this case I would not choose to use them.

Re-read or ask the OP, but I think "subject/syllabus" is the meaning there, Rusty.

We need to ask the OP what she meant.

Thank you~ I like the corrections~