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.

What's New

May 9, 2026
Interval Drills

Fixed-root interval ear training drills

I've added a new set of 'fixed-root' interval ear-training drills. The idea here is that it's much easier to identify an interval if you are always working from the same starting point. All of the existing drills have now been labeled as 'random-root', since the root note of the interval can change with each new question.

Examples:

May 5, 2026
Interval DrillsScale DrillsChord Drills

Drill groups and organization

This week's update is a bit more administrative, though hopefully still helpful. All drills have been organized into groups to make things easier to navigate.

All interval 'ear training' drills, for instance, are now listed on their own page, in easiest to hardest order. This will make room for more drills and make it easier to keep track of where you are in your learning of a particular topic.

Examples: