In this exercise on first species counterpoint, the top melody is the cantus firmus and the bottom one my counterpoint.
I am not a musician and just learned the rules. This is the second exercise from this website. The annotation "battuta" was generated by Sibelius' review plug-in for checking first species counterpoint.
The following is my question, that probably comes from me misunderstanding the rules.
Question: How to avoid battuta for this cantus firmus?
Here is what I thought. The cantus firmus ends in D. So, I end the counterpoint on D an 8ve lower. (I am not sure if there are other options. Perhaps unison?) The cantus firmus approaches the last note from above. If I put the counterpoint melody to approach the last note from above, we would have a similar motion landing on an 8ve. I think this would give a hidden 8ve.
Edit: Yes, in this linked question there is the definition of battuta. This is, an 8ve approached by contrary motion from outside, from a larger interval. This is the reason why I don't know how to avoid it in this exercise. To avoid it, my counterpoint melody would have to arrive to D from above, but then we get to an 8ve from similar motion, which is hidden 8ve.
So, I must be wrong in thinking that I cannot transgress one of these rules:
- battuta
- hidden 8ve
- End with an 8ve or unison.
Edit: I will try something like ending with CBAAD. However, I think that using exactly this ending would produce successive jumps E3, A3, C4 in measures 5 to 7.
