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Music Monkey Guru

A series of videos on music harmony, but with a difference, delving into the reasons behind Western music harmony - why we have keys,  why are there major and minor keys, why there are only twelve of each, why we have scales, why do we have seven notes in the major or minor scale, why is there more than one type of minor scale, why do some notes go better together than others, why do some chords go better together than others, why rhythm works . . .. and much more. Suitable for music students of all levels.

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What's inside

Learning objectives

  • The origins of, and the reasons behind, music harmony.
  • How sound works.
  • Where music harmony comes from.
  • Why we have chords.
  • Why we have keys.
  • Why we have major and minor keys.
  • Why we have scales.
  • Why we have major and minor scales.
  • Why there is more than one type of minor scale.
  • Why there are only 7 notes in a scale.
  • Why there are only 12 different notes in total.
  • Why some chords go together better than others.
  • Why rhythm works.
  • A bit about monkeys.
  • Show more
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Syllabus

In this introductory lecture, students will learn about the content of course

Intro - Have you ever wondered why we have keys? Why there are only 12 keys? Why we have scales? Why there are major and minor scales? Why there are only 7 notes in a scale? Why there's more than one type of minor scale? Why some notes go better together than others? Why some chords go better together than others? If you have, then you've come to the right place.

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In this section, you will learn about the fundamentals of sound, and discover how the physics underpins all musical harmony.

Before we can understand music harmony, we need to understand a little about how sound works first. This lecture looks at the fundamentals of sound.

Now that we know all sound is produced by something vibrating, we need to take a look at how things vibrate because that is where the secret to all music harmony lies.

The Harmonic Series holds the key to understanding all music harmony. It is baked into the very fabric of the Universe.

Sound Advice
Three Notes Go Into A Bar

Now that we know the Harmonic Series, and in particular, the major chord, is baked into the very fabric of the Universe, it's worth just taking a moment to look at a little bit of history and ask "How old is music?"

Time for the interval methinks. Our old friend Pythagoras was into more than just squares of the hypotenuse and so in this lesson, we’re going to take a closer look at the harmonies he was interested in and how they relate back to the Harmonic Series. Stay tuned folks!

The Harmonic Series reveals more of its secrets. This time we look at the relationships between notes and discover that every note has a special relationship with two other notes, one on either side.

The Harmonic Series has shown us that every note has a special relationship with two other notes a fifth either side. Let’s see what happens when we overlay the major chord, also kindly provided to us by the Harmonic Series, on top of these notes.

Students will learn why we have major keys, why we have major scales and why there are only twelve.

From tiny acorns, mighty oaks will grow. Whichever way you look at it, it’s all a matter of scale.

A musical key is built from related notes around a home note. It can be thought of as a family, where the home note is Mum and the other notes are the kids. The kids will run off and play but eventually they will always return home to Mum, and so it is with Western harmonic music.

Time for a night cap I think. Also time to talk about the diatonic scale, and in particular, the tetrachord.

A Matter Of Scale
Students will understand why we only have twelve notes in Western music, the origins of the twelve major keys and their relationship to each other.

Now that we know about the tetrachord, we can use this to easily identify all of the twelve major keys.

Phew! Time for a well earned break I think so let's just have a few relaxing moments with the monkeys from Ipanema (well, Thailand actually).

Ingonyama nengw' enamabala. *1

It's the circle of fifths. And it moves us all. Through despair and hope. Through faith and love.

*1 - Lion and leopard spots.

A 1951 post-apocalyptic lecture on triads and their inversions. Warning: some scenes may be unsuitable for young viewers.

Twelve Monkeys
Now that you understand the basic principles of harmony, you will learn how these principles can be applied to build up chord progressions.

Apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, public health and peace, what have the Romans ever done for us?

Well, they gave us Roman Numerals for starters.

Much as the notes of a diatonic scale can be thought of as a family, so too can the chords of a key, with the chord on the tonic being Mum, and the others being the kids, who will all run off and play but eventually return back to Mum. Some of the kids have favourites, Mum has her favourites too.

Everybody needs a job when they grow up, and chords are no different.

Have The Chords Got Jobs
You will understand the role of the dominant seventh chord and the tritone in creating tension or movement. You'll also understand the origins of the minor scale. We'll also revist some old friends.

The Harmonic Series gives us the Perfect Intervals, the major chord and so the major scale. But as a consequence of this, we find the tritone, or the diminished fifth, nestling in the confines of the triad built on the seventh degree of the major scale. Surely, this is the work of the Devil!

There are no jungles in Asia Minor. There are no monkeys for that matter. This was a mistake, it should have read “The Jungles of Major Minor”. The origin of the minor keys has been shrouded in mystery for too long. It’s time to lift the lid.

The last time three notes went into a bar, they came from the major key. This time, we're going to see what happens when three notes from the minor key go into a bar.

Diabolus In Musica
By the end of this section, students will learn that a chords function is dependant on it's context in Time, what has gone before and or what comes afterwards, and Time Sigantures.

Space . . . and Time . . . the final frontiers. These are the voyages of the Music Monkey Guru. His five year mission: to explore strange new worlds, to seek out new life and new harmonic progressions, to boldly go where no one has gone before.

In this lesson we look at the Arrow of Time, and how music uses rhythm as a template over which harmonies can unfold. We look at Time Signatures, Simple Time, Compound Time and spend no time at all considering whether Johann Strauss was actually a fly.

Space and Time Quiz
In this section, the student will learn about modulation, melody, tension and release, the use of form and how to put everything together. They might learn I've told a couple of small porkies.

Modulation Modulation Modulation

That’s what you need.

If you wanna be the best

And you wanna beat the rest.

Oo-ooh!  Modulation’s what you need.

(Trumpet Solo)

Modulation’s what you need.

If you wanna be a record breaker.

Record Breaker ooooooh!


Feeling tense? Let it go. Just relax. That good? Now tense up again. Done it? Hold it. Now let it go. Feel good? That's music that is.

In the 16th century, they would occasionally place live birds in a pie that would then fly out "when the pie was opened" as a form of entertainment (this was before T.V. remember). Happily, this practice has since died out, but is alluded to in a popular nursery rhyme with its familiar melody. This lecture is not about pies, it is about melody.

Tension and Release
In this section, students will learn about form, using the knowledge of chord progressions to play in any key and will discover a couple of minor untruths.

Chord progressions are great and form the phrases from which we can build sentences. Sentences need to be put together to form a story with a beginning, a middle and an end and so we need to provide a structure to a piece of music.

I thought it would be useful to take a look at putting it all together.

Sometimes you have to tell a few little porkies to get to the Big Truths.

Putting It All Together
A coda (Italian for 'tail') brings a piece of music to an end and so fitting I thought for the last lesson in the series.

The final lesson in the series. Here, I wrap up the series, with a few words on what I've talked about and what I haven't talked about, among other things.

Encore

Couldn't help but publish these.

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Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Why Music Works with these activities:
Review Basic Music Theory
Strengthen your understanding of fundamental music concepts like notes, scales, and chords to better grasp the course's explanations of harmony.
Show steps
  • Review the definitions of notes, scales, and chords.
  • Practice identifying intervals and chord qualities.
  • Complete online quizzes to test your knowledge.
Read 'The Complete Idiot's Guide to Music Theory, 2nd Edition'
Gain a solid foundation in music theory principles to better understand the 'why' behind musical harmony.
Show steps
  • Read the chapters on scales, chords, and key signatures.
  • Complete the exercises at the end of each chapter.
  • Take notes on key concepts and definitions.
Discuss Harmonic Progressions with Peers
Reinforce your understanding of harmonic progressions by discussing them with peers and analyzing examples from different musical styles.
Show steps
  • Form a study group with other students.
  • Choose several songs and analyze their chord progressions.
  • Discuss the function of each chord within the progression.
  • Share your findings and insights with the group.
Four other activities
Expand to see all activities and additional details
Show all seven activities
Compose a Short Piece Using Specific Chord Progressions
Apply your knowledge of chord progressions and harmony by composing a short musical piece, solidifying your understanding through practical application.
Show steps
  • Choose a key and a set of chord progressions from the course.
  • Compose a melody that complements the chosen progressions.
  • Arrange the piece for a specific instrument or ensemble.
  • Record or notate your composition.
Explore 'Harmony' by Walter Piston
Deepen your understanding of advanced harmonic concepts and techniques through a rigorous study of a classic harmony textbook.
View Harmony on Amazon
Show steps
  • Read the chapters on chord voicings, modulations, and non-harmonic tones.
  • Complete the exercises at the end of each chapter.
  • Analyze musical scores to identify harmonic techniques.
Analyze Music Scores
Improve your understanding of music harmony by analyzing scores from different composers and musical periods.
Show steps
  • Select scores from different genres and composers.
  • Identify the key, chord progressions, and harmonic devices used.
  • Research the historical context of the music.
  • Write a short analysis of the harmony in each piece.
Transcribe and Analyze a Jazz Standard
Apply your knowledge of harmony and chord progressions by transcribing and analyzing a jazz standard, focusing on its unique harmonic characteristics.
Show steps
  • Choose a jazz standard to transcribe.
  • Transcribe the melody, chords, and bass line.
  • Analyze the harmonic structure and identify any unique chord substitutions or alterations.
  • Write a short analysis of the harmony in the jazz standard.

Career center

Learners who complete Why Music Works will develop knowledge and skills that may be useful to these careers:

Reading list

We've selected two books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Why Music Works.
This classic text on harmony, known for its rigorous and systematic approach. It delves into the principles of tonal harmony with detailed explanations and numerous examples. While it can be challenging, it provides a thorough understanding of harmonic function and voice leading, making it a valuable resource for advanced students and those seeking a deeper understanding of music theory.
While not directly about music theory, ear training is crucial for understanding and applying theoretical concepts. provides exercises and techniques for developing the ability to recognize intervals, chords, and melodies by ear. It complements the course by helping students internalize the sounds of different harmonic structures.

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