Use with Choir - backing track

Hello,

I think what you might want to do is the following:
1) create a new project using a 'click track';
2) upload your backing track audio file;
3) your choir records;
4) when you're ready, check 'include in export' underneath the audio file, and export the project.

That way your backing track audio will be included with the video export.

Does that answer your question?