Sessionist Beta
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Beta news

What I'm working on, what's broken, and what's fixed.

This page is where the beta happens in the open. I post here through the day — what I'm fixing, what's going out in the next version, what I've just broken. Every bug a tester reports gets a number and appears on the list below, so you can see whether the thing you hit is known, whether anyone else has hit it, and what I've done about it.

What's happening

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Reported bugs

Everything testers have sent in. Reporters are shortened to two letters — your full address is never published. If you've reported something and can't find it here, mail me; it means I've mislaid it.

BugDateByCategoryPageActualExpected StatusDev comments
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Reporting a bug

By far the best way to report a bug is by clicking on the blue "bug" icon in the Beta app, and describing the bug in the fields that open up. You'll get a notification with a bug number. As soon as the bug is accepted it will appear here.

Joining the beta

Android and Windows are open to everyone — no cap, no waiting. iPhone/iPad testing is available to anyone happy to install Apple's TestFlight app — 100 places.

iPhone and iPad — TestFlight, for the dedicated

Apple only allows beta installs through its TestFlight app, so this one is an extra hoop: install TestFlight (free, Apple's own), then tap the link on the device you'll test on. If that doesn't put you off, you're exactly the tester I want.

Join the iOS beta

Android — Google Play

Open to everyone. Tap the link on your phone, choose Become a tester, then install from Google Play as normal. Updates arrive through Play automatically, so you're always on the latest version.

Join the Android beta

Windows — no waiting

The Windows build has no cap at all. If the mobile rounds are full and you don't fancy waiting, this is the whole app, today.

Download for Windows

Contributing guide audio

If you're a strong player there's a second thing you can do. The play-along backing is MIDI at the moment and it should be real players. Get a clean run in the app and it will offer to submit that take as a guide for other people learning the tune — moderated before it goes anywhere, credited to you if it's accepted, and never uploaded unless you choose to.

Your recording is never altered: no pitch correction, no time-stretching, no AI-generated sound, and nothing trained on your playing. The privacy policy has the full detail.