Post announcements with topic showing following details:
Time, country, city, + "festival name" + bands
Subject line has limited amount of text, so focus on important parts if space is limited.
Example how it should NOT be done:
subject: "live gig!!! Noise!!!"
Example how to do it:
subject: 17.4.2010 GER, Leipzig: GENOCIDE ORGAN, PAIN NAIL, THO-SO-AA
and message with further information, link to organizer, link to poster, price, etc.
Organizers or the original poster: Keep messages up-to-date. If cancellations, changes, etc. happen, remember to inform about it.
And also:
I think that live show reports would belong to main sound discussion. So if you have a report to make about some live show, open topic about it in general sound discussion.
This section preferred for announcement. Any talk about bands, live sets etc, should be directed to discussion section.