This Seven Goes to Eleven — Backup, setlist, and patch software for the Crumar Seven

In 2024 I was asked to play a few shows with The Long Winters. The only problem: I had sold my B3, Rhodes, and other related classic keyboards. I had to rebuild a rig. The Crumar Seven drew me in with its look and form factor — and the stellar Rhodes and Wurly sounds covered most of my piano needs. Plus, it was enjoyable to play.

But backing up patches, editing the deeper settings, and connecting to the browser-based app was a royal pain. That wireless Wi-Fi Dongle?! 🤦‍♂️

So in August of 2026 I set out to build software for the Seven that made sense to me and was easy to use.

This Seven Goes to Eleven talks to your Crumar over a USB cable. It backs up all 32 presets in under a minute, keeps them as files on your computer, and organizes them into setlists you can take on the road.

Dark theme: bank 1 as captured by the last backup, a patch's sound engine parameters, and the effects chain with FX1 open. — Bank 1, with FX1 open

Light theme: bank 2 with renamed patches, a Clavi patch showing its filter tabs and pickup switches. — Light theme, Clavi tabs and pickups

The patch library open on this computer, with a sampled Venice Upright patch showing its sample-player parameters and expression pedal range. — The library, and a sampled patch

A setlist's eight slots, with one patch being renamed in place. — A setlist, renaming a slot

T7GT11 today:

Connect via USB-B to USB-C cable
Back up all 32 presets over USB
Organize patches into setlists for different shows
Create custom patch and setlist names
See which sounds and expansions your Seven has installed
Dark / light mode

Coming soon:

Edit FX and parameters from the software
Load patches from the software back onto the Seven
Packaged downloads for macOS 12+ and Windows 10+

Being built in public — the source is on GitHub, and progress shows up in Notes.