Naven
Communities
A choir or band chat for rehearsals
Membership turns over every term, which is what breaks a group chat somebody has to administer one person at a time.
Who this is for
Amateur choirs, bands and orchestras of fifteen to eighty people.
How it is usually set up
A channel for the schedule, with recordings and parts shared in it.
What Naven does not claim
Naven promises no security and no moderation. Messages are screened before they send against twelve published categories, by software written by one person — it misses things, and it is weaker in languages other than English. Calls are not screened at all. Naven is not end-to-end encrypted, which is what makes screening possible; anyone whose first requirement is end-to-end encryption should use Signal.
What it costs
Nothing. Naven is free, with no advertising, no paid tier and no data sale.