What a band should post when there's nothing to post

Our band's page was quiet for seven months once. Not because nothing was happening; we rehearsed every week, wrote four songs, changed a bass player and played two shows. It was quiet because every time one of us opened the app to post, the thought was: we haven't released anything, so what is there to say?
That thought is the problem. It assumes the only thing a band can post is news, and the only news is a release. Nobody follows a band for the news. They follow because they like you, and they'd like to see what you're like between the big moments. The big moments are about four percent of a band's life. The other ninety-six is the content.
Here's what I'd post now in a month with "nothing to post," and a rhythm for doing it that doesn't eat the week.
The actual list

Twenty seconds of rehearsal. Phone on a stand or propped on an amp, filming whatever you're playing. Don't edit it. Don't add captions. The groove that was good on Tuesday, the ending you finally nailed, the bit where the drummer laughs. This is the single best post a band can make and it costs nothing. The audio is bad. Nobody cares. They're not there for the mix; they're there to be in the room.
A piece of gear. The pedal, the snare, the forty-year-old amp held together with gaffer tape. Two sentences: what it is, why you use it. Gear posts get a specific kind of comment ("I have that one too!") that turns followers into people who talk to you.
The set list. Hand-written, photographed on the floor before a show or taped to a monitor. Add one line about a song that isn't out yet. It's news without being news, and it gives the people coming to the show a reason to look for that song.
The story of one song. Where the lyric came from. What it was called before. The chord that doesn't belong and how it got in. You know these stories; you tell them in the van. Write one down. It's the kind of post people save and come back to after they've heard the song.
An honest ask. We need a drummer for two gigs in March. Does anyone have a van on the 14th. Anyone know a rehearsal room near the station that isn't booked on Thursdays. People like being useful, and an ask is a post that gets replies from people who never comment on anything else.
A memory. The first show, with the photo from someone's old phone. The first demo, with its terrible artwork. "Three years ago today" is a post you can make every week of the year if you've been a band for a while, and it tells new followers you've been doing this for longer than their feed suggests.
A cover, or a jam. Someone else's song, your way, filmed in the rehearsal room. Thirty seconds is enough. It borrows an audience: the people who search for that song find you. It also tells people what you sound like better than a bio ever does.
A band member. Name, instrument, three facts, one of them not about music. Rotate through the band over a few weeks. People follow people; a band page where nobody has a face is a logo.
That's eight, and each of them can be repeated monthly with different content and nobody will notice it's the same format. That's the point of formats.
What to stop doing
Stop posting only when you have news. You know this already; it's the whole article. But also:
Stop posting the same poster four times. One post for the show announcement, one reminder the day before, one thank-you after. The poster goes in the first one. The other two are a video and a photo.
Stop writing captions like a press release. "We are thrilled to announce" is how a label writes. "we did a thing. it's loud. link in bio" is how a band writes. Your captions should sound like the person who'd answer the band's messages, because it's the same person.
Stop deleting the posts that didn't do well. Low numbers on a rehearsal clip are not a judgment. The clip is for the hundred people who like you, and twelve of them watched it twice.
Stop waiting for the professional photos. The phone photo from the side of the stage, posted that night, beats the retouched one posted three weeks later every single time.
A week that doesn't burn you out
The reason bands go quiet isn't lack of ideas. It's that someone decided they should post every day, did it for two weeks, hated it, and stopped entirely. Here's the rhythm that's held up for us for two years.

One real post a week. Tuesday, because Monday is bad and the weekend is for shows. Something from the list above. Ten minutes, including choosing the clip.
One low-effort post a week. Friday. A photo, a repost of someone's story from your show, a ten-second clip. Two minutes.
Replies, every day. Five minutes. Answer every comment and every message, including the one-word ones. This is the actual work. Two posts a week with every comment answered will grow a band page faster than daily posts that nobody replies to, because the algorithm is secondary; the people are the point.
That's about half an hour a week. Assign it to one person, and rotate it every couple of months so it's not the singer forever. The person doing it shouldn't need permission to post a rehearsal clip; if every post needs four people to approve it, you'll be back to seven months of silence.
When you do have news
Now the release, the show, the new member actually land, because they arrive into a page that's alive. The people who watched the rehearsal clips have been waiting for the song. The people who answered the honest ask feel like they're part of it. The post about the release isn't "a band I follow put out a thing," it's "oh, that song, finally."
And the week after the release, when the big moment is over and you're back to Tuesday rehearsals, you already know what to post.