Line Lab
Build and inspect a single musical line.
- Notation and guitar TAB
- Playback and ingredient details
- Line editing with Pro
Access: Basic exploration is public. Free adds core practice; Pro adds advanced choices and editing.
The whole workshop
Choose the tool that fits your question.
Explore melody and repertoire, hear how harmony moves, test your ear and hands, or organize material for practice and teaching. Each guide explains what a tool does before you begin.
Melody and repertoire study
Scale Outlines
Follow scale movement through a tune or form.
- Phrase-level outlines
- Synchronized playback
- Create and edit outlines with Pro
Access: Basic outlines are public. Free adds transposition; Pro adds the full library and authoring.
Experimental Alpha
Ingredients
Explore the small moves that connect a line.
- Ingredients and ABCs
- Notation, guitar and piano views
- Multi-ingredient chains with Pro
Access: Basic exploration is public. Free adds keys; Pro adds advanced resources and chains.
Harmony and voicings
Scales of Chords
See and hear movement within a scale of chords.
- Guitar and piano views
- Voicing movement and playback
- Advanced voicings and borrowing with Pro
Access: Basic exploration is public. Free adds core practice; Pro adds advanced resources and settings.
Alpha · Experimental
Harmony Explorer
Explore scale-of-chords movement over changes.
- Progression timeline
- Scales and voicing choices
- Chart and movement authoring with Pro
Access: Sign in for the default study. Pro adds other studies and authoring.
Barry Universe
Trace the connections between diminished parents and chord families.
- Whole-tone and diminished parents
- Four scales-of-chords families
- Interactive relationship map
Access: Open to everyone.
Listening and interactive trainers
Ear Training
Identify intervals by listening.
- Harmonic and melodic questions
- Guitar and piano answer displays
- Results by playback mode
Access: Open to everyone.
Voicing Trainer
Find the missing notes in a voicing.
- Guitar and piano answers
- Optional audio
- Exercise settings and statistics
Access: Basic questions are public. Free adds core practice; Pro adds advanced exercise settings.
Borrowing Trainer
Find the note a chord tone borrows above or below.
- Borrowing directions
- Guitar and piano answers
- Selectable exercise settings
Access: Basic questions are public. Free adds core practice; Pro adds advanced exercise settings.
Interval Trainer
Locate chord-tone intervals inside a voicing.
- Visual interval questions
- Guitar and piano answers
- Selectable exercise settings
Access: Basic questions are public. Free adds core practice; Pro adds advanced exercise settings.
Contrary Motion
Explore contrary motion through voicings.
- Interactive voicing challenges
- Guitar and piano views
- MIDI input and sound
Access: Basic challenges are public. Sign in for the full trainer.
Teaching and organization
Chart Maker
Create a clear guitar or piano diagram.
- Note labels and marker layers
- Guitar and piano charts
- PNG export
Access: Open to everyone.
JazzRep
Keep your repertoire and listening references organized.
- Tune familiarity and readiness
- Book and listening references
- Personal tunes and links with Pro
Access: Sign in to track repertoire. Pro adds personal tunes and listening links.
LiveFrets Display
Display live MIDI notes for teaching and casting.
- Fretboard and piano display
- Voicing detection
- Teaching and screen-casting views
Access: Basic display is public. Sign in for full Display access. Private LiveFrets is separate.