ture, a little more room never killed anybody anyways. Just don't put in a lot more room for the fabric.
The correct answer is :
A second voice
Explanation:
As no genuine independent other voice exists, this is a form of heterophony. In its earliest stages, organum needed two musical voices: a Gregorian chant melody, and the same music transferred by a consonant interim, regularly a complete fifth or fourth.
No, you should let them make the choice on their own but encourage them in their decision I think and encourage them to try new things even if their afraid\ of them like stage fright :)
Hope this helped at all :)