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The circle of fifths, Taught not just answered. 

A real-time, 1:1 lesson on The circle of fifths: an AI teacher explains it out loud while it visualizes every step. Interrupt it, ask why, and it checks you got it, in 26 languages.

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The idea

What is The circle of fifths?

The circle of fifths is a diagram that arranges the twelve keys in a ring so that each step clockwise rises by a perfect fifth and adds one sharp. C major, with no sharps or flats, sits at the top and the sharp keys run clockwise until they meet the flat keys at the bottom, where F sharp and G flat are the same key. Relative minors sit on an inner ring, and neighbouring keys share most of their notes, so the circle guides modulation.

Where it appears: ABRSM and Trinity theory Grades 2 to 5, GCSE and A Level Music, AP Music Theory, IB Music, songwriting courses.

Where learners get stuck

Why The circle of fifths is hard

Learners memorise the ring without seeing the fifth relationship behind it, mix up the order of sharps with the order of keys, and are puzzled by enharmonic keys at the bottom.

The picture a good explanation starts with: The ring of twelve major keys with the number of sharps or flats beside each, relative minors on an inner ring, and a keyboard showing C to G as a perfect fifth of seven semitones.

A lesson, step by step

How a lesson on The circle of fifths goes

  1. 01

    Ask

    Type or say "How do I use the circle of fifths to find a key signature?" in your own words, in any of 26 languages.

  2. 02

    Plan

    The tutor plans a storyboard, one picture per idea, starting with the ring of twelve major keys with the number of sharps or flats beside each, relative minors on an inner ring, and a keyboard showing C to G as a perfect fifth of seven semitones.

  3. 03

    Explain

    It explains The circle of fifths out loud while the picture builds step by step, pitched to your level (ABRSM and Trinity theory Grades 2 to 5 and up).

  4. 04

    Interrupt

    Say "wait, why?" or type a doubt: it stops, answers over the picture, and carries on. Ask for a different explanation any time.

  5. 05

    Check

    A checkpoint question makes sure the idea landed, and Tests keep the practice going.

  6. 06

    Your notes

    Upload a PDF or a photo of your class notes or a past paper and the lesson follows your textbook's terms.

Ask it anything

Questions learners ask about The circle of fifths

  • How do I use the circle of fifths to find a key signature?
  • Why is it called a circle of fifths?
  • Where are the minor keys on the circle of fifths?

Any of these, or your own, typed or spoken. The tutor answers on the picture and adapts to how well you are following.

Questions

Asked, Answered

Can LetMeTeach explain The circle of fifths?

Yes. Ask in your own words and the tutor plans a lesson on The circle of fifths: it starts with the ring of twelve major keys with the number of sharps or flats beside each, relative minors on an inner ring, and a keyboard showing C to G as a perfect fifth of seven semitones. Then it explains each step out loud as the picture builds, stops when you say "wait, why?", and ends with a checkpoint question.

Where does The circle of fifths come up?

ABRSM and Trinity theory Grades 2 to 5, GCSE and A Level Music, AP Music Theory, IB Music, songwriting courses. The lesson is pitched to your level and the exam or curriculum you follow, and you can upload your own notes or past papers so it uses your textbook's terms.

Can I learn The circle of fifths in my own language?

Yes. LetMeTeach teaches in 26 languages and plans the lesson in the language you choose rather than translating an English one, so the terms match what your textbook says. The Free plan includes 7 hours a month with no card.

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