Astrobass

Tools for musicians

Listen, write, play.

Eartraining trains your ear for chords and progressions. Chordline turns them into a chart with licks, rhythm and scales – as a PDF for the iPad. In the browser, offline, no ads.

The tools

Each tool works on its own – with one account they will work together.

Eartraining

DE · EN

Hear chords, intervals, scales and whole progressions – from function to the bass note.

IN
an audio example, your ear
OUT
recognised progression, bass notes, progress

Currently still at sovuno.de.

Open Eartraining

Chordline

German only

Write charts as text: chords, licks as tab with rhythm, scales, lyrics. Repeats written out on request.

IN
| Bb7 | % | Eb7 | % |
OUT
A4 PDF for the iPad and forScore
Open Chordline

More tools in the works

The platform keeps growing. New tools appear here as soon as they are usable.

How the tools fit together

  1. 1 · Listen

    Recognise the progression in Eartraining: II–V–I in B♭, bass on the third.

  2. 2 · Write

    Capture it as a chart in Chordline, add a lick, get scale suggestions.

  3. 3 · Play

    PDF onto the iPad, play it at rehearsal – even offline.

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.