About Astrobass
Tools by a musician, for musicians
Astrobass is a small platform with tools for practising and playing: Eartraining trains your ear, Chordline turns chords, licks and text into a lead sheet. Everything runs in the browser, also offline, without tracking.
Who is behind it
I am Frank. I have played guitar and bass guitar for 50 years – with long breaks in between. In 2024 I got back into it properly, and since 2025 I have been taking lessons again at Andys Bass Camp. Today I play in two bands, covers and rock.
More and more I am drawn to jazz and the theory behind it: chord functions, scales, progressions. That is exactly where the ideas for the tools came from – Eartraining, because I wanted to hear these relationships, not just read about them; Chordline, because I needed one sheet for rehearsal with chords, licks and notes together.
Bass meets IT
For decades I have worked in IT, professionally and privately. I build and run many applications, mostly for the web, at work and as a hobby. Astrobass brings both together: what I was missing on the bass, and the craft to build it. AI and agentic software development help me turn more ideas into tools in less time.
Principles
In the browser
Nothing to install. On the home screen like an app, also offline.
No account needed
An account will only add sync and extra content – never required.
Light and dark
Dark mode for stage and rehearsal room. Sheets stay white.
No tracking
No ads, no analytics, no cookies.
The tools
Contact
Questions, ideas or bugs – use “Feedback” in the top bar or email info@astrobass.de. Provider details in the legal notice (German).