Interval names, symbols, example notes, and audio.
Music Reference and Theory
Find details on scales, chords, arpeggios, chord progressions and how
to play these on the guitar. All guitar references can be suited to
standard or alternate tunings.
Knowledge and Ear Training Drills
Test your knowledge, improve you ability to know what you hear, and
strengthen your weak points with these drills.
Intervals
Next Note
Learn to construct an interval from a starting note.
Ear Training
Learn to name intervals that you hear.
Scales
Notes in scale
Learn to list notes in a scale.
Scale by notes
Learn to name a scale from a list of notes.
Chords
Notes in chords
Learn to list the notes in a chord.
Chord by notes
Learn to name a chord from a list of notes.
Scale Charts
Play Scale Chart
Practice playing scale charts.
Arpeggio Charts
Play Arpeggio Chart
Practice playing arpeggio charts.
What's New
August 12, 2026
Dark mode
Not much else to say! This should default to your system's settings, but if you prefer something other than what your computer picks, you can change how things appear on the site by clicking the sun or moon in the top right of the site.
July 18, 2026
Arpeggio chart drills practice
This week's update continues the theme of melodic practice. I've added a practice-only set of drills for arpeggio charts similar to the scale charts from the last update.
These will randomly select chords from a set of chord types, request you play an arpeggio for this. After you've attempted this, you'll be provided with the correct notes you should've played, as well as an example of an arpeggio chart for this chord. If you need more practice, you can also open the new practice interface for this arpeggio from here.
In additional to the work on drills, I've added descriptions for some of the groupings for chords and scales - so when you see "Diatonic", you can quickly see this just means "normal scales" and isn't super scary after all.
Examples: