Walking Bass Trainer
Jazz Upright Bass Chord Puzzle
$2.99 · Designed for iPad. Not verified for macOS.
Stop retreating to the easy part of the fingerboard.
Walking Bass Trainer makes you find chord tones across the whole double bass — in time, in tune, and without falling back to the positions you already trust.
I built it because I had exactly that problem.
I play double bass, and I write software. I realized that when practicing walking lines I'd happily use the parts of the fingerboard I knew well, while the awkward positions stayed awkward.
So I built something to break the habit of retreating to familiar positions.
Walking Bass Trainer deals you a chord, keeps time, and listens through your microphone while you walk. Find a chord tone and it lights up. Play it sharp or flat and you see by exactly how many cents.
Then the next chord arrives.
A new puzzle every bar.
You're walking at 120 BPM.
Dm7 appears. G7 is already waiting underneath.
You find F. It lights up.
You reach for C higher up the neck. You're 17 cents sharp.
Next bar. G7. Keep walking.
It won't give you walking bass lines to memorize. That's deliberate.
This isn't a walking-bass course. It's for players who understand chords but want the connection between chord symbol, sound and fingerboard to become automatic.
Because on the stand, nobody waits while you work out where the 7th is.
Ratings & Reviews
Chord-tone tuner readings now stay visible while your note settles, so they no longer blink away during a bar. We’ve also fixed Finish so a completed round opens its own progress report.
The developer, Joe Gass, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Joe Gass
- Size
- 10.2 MB
- Category
- Music
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Copyright
- © 2026 NerdBoy Software

