More Than a Shared Loop

A MIDI Lab Jam Session is a synchronized real-time room. The host and admitted collaborators evolve multi-layer MIDI patterns together — each person can submit evolution prompts, tweak the drum grid, and shape the music as it plays. Viewers watch and hear everything live but cannot make changes. All of it streams as MIDI, so every participant hears it through their own sounds.

Public vs Private Sessions

When you start a session you choose whether it is public or private:

Public sessions appear in the Feed's Live Rooms tab. Anyone with a MIDI Lab account can see your room, request to join, and potentially become a collaborator or viewer.
Private sessions are not listed anywhere. Only people you share the invite link with can even find the room.

Private is not end-to-end encrypted — session data is still stored on MIDI Lab's servers — but it is fully unlisted. Treat the invite link like a private event link: share it only with the people you intend to invite.

The Live Now Profile Card

When you are an active admitted participant in a Jam Session, a Live Now indicator appears at the top of your public profile. Followers and visitors can see you are live and jump in with a single tap. When your session ends or you leave, the card disappears automatically — no cleanup needed.

This is why producers link their MIDI Lab profile wherever they stream. One URL covers your tracks, presets, and live sessions all in one place.

Collaborator vs Viewer

The host controls who gets which role:

Collaborators can evolve layers, run the drum grid, and actively shape the session alongside the host.
Viewers see and hear everything in real time but cannot make any changes.

The host can promote a viewer to collaborator, demote a collaborator, or remove someone entirely — at any time, without warning. These decisions are entirely up to the host.

In-Session Chat

Every admitted participant (host, collaborators, and viewers) can see the in-session chat panel. It is private to the room — the public only knows a session exists, not what is being said. Chat messages are kept for 90 days after a session ends and then deleted, so if someone shared something important in the chat, save it before the session closes.

Saving Your Work — Snapshots

MIDI Lab does not automatically record your sessions. To keep what you create, save a Snapshot:

Click the Snapshot button in the Infinite Engine controls at any time during the session.
The Snapshot is saved to your Library — not the host's, not a shared space. Whoever hits save, owns that copy.
Collaborators and hosts can both save Snapshots independently.

Once the session ends, you can only access what you already saved. If you close a session without saving, the state is gone.

Who Owns the Music?

Everyone contributes prompts and ideas, but the AI generates the actual notes. Ownership is practical: whoever saves a Snapshot owns that Snapshot in their own Library. There is no automatic joint ownership or co-authorship framework. If you co-create something you want to keep, save a Snapshot before the session ends.

For the full legal details, see our Terms of Service (Live Jam Sessions section).

Ready to jam? Open the Infinite Engine, start a session, and share the link.