Which more often!

[RoseSpring]

Which one is said more often?

We will start the rehearsal after a short time?

Or

The rehearsal shall be started within minutes?

Or there are other common alternatives?

 

[tedtmc]

We will start the rehearsal [STRIKE]after a short time[/STRIKE] shortly.
The passive form sounds unnatural.

not a teacher

 

[RoseSpring]

Thanks indeed.