Part 3: Hear and measure relationships · Lesson 027 / 117
Listen, predict, then check
Practice stop — no rushMake interval practice an ear task as well as a counting task.
Choose one interval pair that you can already construct: major and minor thirds work well. Play the reference C, pause, and try to imagine or hum the upper note before playing it. Then check on the guitar.
Your prediction does not have to be perfect. The useful loop is hearing a reference, predicting a relationship, checking it, and adjusting. Pressing a familiar shape without listening skips that loop.
Keep the reference and register consistent initially. After a few comfortable comparisons, move the same relationship to A. The absolute notes change, but the distance does not.
When a comparison is difficult, reduce the task to one known sound rather than adding more interval categories. Practise a few repetitions, take a break, and return later. This course uses hearing to support understanding, not to create a barrier before you may play music.
Hear it
Thirds
Audio fileFour-beat count-in · 60 BPM · Warm sampled electric guitar. Listen once before playing along.
A concrete example
Predict E above C, check it, then compare Eb. Later predict C# above A and compare C.
Try it, slowly
- Play C, hum the upper note you expect for a major third, then check E.
- Repeat with the minor third Eb.
- Do two comparisons from A and describe what stayed the same.
Check one idea
What stays the same when you move a major third from C–E to A–C#?
Show the explanation
The interval structure: four semitones and a third-letter relationship. The actual note names and guitar addresses change.
A good place to stop
You can use a heard reference to make a prediction, then verify rather than merely guess.
Return to the example after a short break. A clear explanation matters more than speed.