Videos like this make the music learning journey worthwhile. I feel like I was given a new box of presents that I get to unwrap and explore.Thank you for the work that you do

What an eye opener. I played slash chords for years now, but only with simple roots or roots and fifth in the left hand. Never thought about putting two full chords together (though it seems emberassingly obvious now 😆). Especially the soloing options and the millions of possible harmonic variations make it intriguing. Plus the feasibility to explain harmonies that would be hard to grasp on otherwise! Simple and effective 👌

This is the only way to master complex chords and remember them im sure alot of musicians think this way.Great video

I'm not even a piano player, but learning theory and applying some of it's principles are so much easier with instructional videos like this, bass players beware, broken chords sound great over these progressions and will give you the tools to hit the ground running, I'm improvising with great voicings quicker than I ever have before thanks to you! Taking your left hand and right hand and transcribing these polychords for muscle memory to improvise works like a charm.

Your lessons are PURE GOLD. Harmony always was very hard to me to get into, but your lessons present it in a very practical way which is easy to understand by illiterate rockers like myself. Kudos to you sir, avid watcher of your material !

I have been playing these chords for decades, (especially the left-hand minor chord with a right-hand major chord)--I never knew they had a name. Fantastic video!

What a beautiful sequence. Learning this at 3:30am cause I couldn't sleep.

You left out one of my favorites. Play a dominant 7th chord in the left hand (F7), and a major triad which is a major 6th above that (D triad) in the right hand. So, D/F7. In effect it is an F13th with a flat 9. This polychord also works even better if you just play the root and the 7th in the left hand (F and E flat) with the D triad in the right hand. Excellent video, BTW.

I took notes on your ideas, and will work on them on the piano. But I'll watch this again to see how you resolve them. And I think there is a way to work the circle of fourths into this to really make something special.

Wow this is fantastic! And no surprise that everyone really locks in on the particularly wonderful combination at the 14 minute mark!

Groundbreaking for me!! No more guesswork

Learning major, harmonic minor, melodic minor kinda scale helps find these chords and opens up a whole new perspective. Things get very intersting.

Yet another excellent, professionally delivered, presentation! Superb work showing how the wonderful sounding yet theoretically, and notationally, complex polychords can be conceived and played with great effect. To any new visitors to the Mangold Project channel, I strongly urge you to have a look at the collection of videos in the ‘Piano Lessons for Beginners’ and ‘Inspiring Piano Harmony, Chord and Voicing Tips and Tricks!’ playlists - there are a few ‘secrets’ in there that will greatly help your appreciation of music theory and practice - wish these lessons had been around 20 years ago when I was first getting started with piano and theory! Just to make it clear, these videos are focused on playing and are not theory-heavy but if you know a bit of theory you’ll immediately appreciate what is being presented.

I note that the Hendrix chord, on a guitar E G# B D Fx, (E7#9), becomes a polychord if you rewrite the Fx as a G. You then get E G# B D G, a G chord on top of an E chord.

Thanks for your guidance in 2021 and providing another lightbulb moment. Best wishes for 2022 and I look forward to receiving more excellent tips and instruction.

Now I know how pianists play huge extensions so effortlessly

I'm just an infant in piano but I hope to keep playing and enjoying every step of the way until I reach this lesson.Thank you so much, Teacher!!! With love and deep respect.🙂💕♥️

This is great. I want to explore more of the altered dominants such as Eb/A7 = A7b9#11. This has changed my way of thinking about how to build and deploy more complex chords.

thank you! ive been wanting to learn this for a long time. time to watch the video over and over again

As usual excellent polychord theory. Sounds very beautiful and jazzy. Thanks mangold. You rock man 👍😊

Gives you a lot of things, clearly, thoroughly and briefly, things you may discover in years...Keep it up, your tutorials are the best here...

That was helpfull for me as a classical composer who wanted to learn from jazz!🎉

Man this is pure gold thanks for taking on this project. 🙏

I am so glad that a person like you exist. You help us alot in so many ways. Because of yoru videoes, music is so much fun

Hi Mangold, I really like your videos. Thank you for the hard work, you deserve a lot more recognition. Hope to see more videos in the future.

Easy to remember this way. Got to know the formula and inversions.

I’ve been looking for this door to beautiful chord sequences for a long time.

Thank you for taking time to explain polychords. Will look up the video again.

Oh I gonna learn that demo so hard

Amazing lesson, a must have for any keyboard/piano player. Thanks a lot for putting this on KZfaq

A very-very useful lesson, thank you so much.

You are simply awesome on music teaching🎉

Two things stand out to me after watching this video. The first is that I always thought of slash chords as one chord with an altered bass note. Stacking two chords on top of each other never occurred to me. I speak here as a songwriter and music programmer and not as a keyboard player. The second thing that stood out for me was the potential of using this for sophisticated arpeggios. That is where I saw the application of this in my own compositions if I was able to incorporate this kind of theory into my music.

Lots of great concepts in this video. Thanks for posting this! Noticed a few comments with viewers confusing this with slash notation. I find it easier to read polychords when they are notated with a parallel line rather than a slash. (I find it less confusing because the upper chord is played with the right hand and the bottom chord is played in the left -- similar to treble clef and base clef.)

I always thought a notated slash chord meant you simply play first chord / bass note. So for Cmin7/F you'd play F G Bb C Eb But I usually play a melody in the right and it seems a big stretch if you have to do two triads with the left hand.

So useful and professional. Thank you very much!

This is gold. Thank you 🙏

Hi. I am so much learning from your video. I never met teaching those theory that easily understand. Thank you

Great Jazz tutorial ❤ Thank you

Love your lessons. Thank you!

Thank you so much for this lesson!

Thanks, this is really helpful... and a lovely example teaching progression.

Your lessons are so clear and hopeful!

Daym, this is over my head.

Another quality video. Always interesting concepts clearly explained. Thanks Mr Mangold :)

I like taking this idea and applying it to melodies and accompaniments. So write a chord progression in C and write a melody in G. Kinda fun.

Hey mangold project or Assaf hey man I just wanted to say that I’ve been playing the piano for 15 years & to be honest I never had no one Taught me how to play the keyboard or piano u want to know who my father in the sky god taught me how to play the piano & he actually taught me the easiest way & it’s a secret that I’ve learned a long time ago so I can’t tell u what secret it is but I can only tell how I actually started learning how to get better at chord & hopefully another perspective which helped me out when I first started playing the piano when I was little so yeah but anyways assaf thanks for the video keep it up!👍

Sounds beautiful

A very good explanations! They sound good on the piano but thinking about the colours of an ensemble or a windband, polychords work very well using one chord for a section and the other for another: trumpets mute-on and clarinets under the brake.. nice mix!

Fantastic explanation! Thank you!

Awesome video. You have a new subscriber now. Can't wait to dig in to your channel while Im in front of my piano.

Thank you for this. The theory really helps especially around matching the chords🙌🏾.

Awesome tutorial!🚀🚀🔥

Thank you very much for sharing.

Dont know if you rushed though the chords but example 1:38 That could be a FMajor7/ Dm7 or F/Dm9..Depends how you look at it as a poly chord Always good to give the full example of the chord. With ear training i would be able to pick up on it but for new comers and those that look at chords like this they would wonder you have more notes then just F/Dm7 so that would be throw off to some. Other then that solid stuff

Thanks this perspective helped me

Thanks for another great lesson. Straight to the point.

I love the advantages of polychords

Beautiful ❤

An incredible video, thank you so much! Helped me a lot in making better sense of things!

As a guitarist, I think it’s more valuable to learn the actual chord names. Pianists may benefit from this split way of thinking more because you can actually play completely separate chords with each hand.

Fantastic! Thanks!

Just amazing

Thank you so much sir ❤️🙏

Omg I've always wanted to know this! Thank you so much for explaining it!!

Thanks for this video!!!

Great video!

This lesson is awesome 💯

Two I like are a Maj triad a fifth above a Maj 6 chord., e.g. G/C6, which gives a C Maj chord with 6,7 and 9, with no notes repeating. It sounds good in pretty much any inversion. The second is similar, G/Cm6, which gives nice voicings for melodic minor chords. Thanks for this video. I particularly found interesting how frequently you use inversions.

Thank you for sharing this ! You teach things very understandable and clear! Great l!

Thank you so much for this lesson.

Love your explanation. Keep on please ❤️

15:14 -> 'there are many others' Well.... if you ever feel like doing a follow-up video....:-) Cos this was a blast. Learned a ton ! Thanx for these lessons. . Thumbs up + subscribed.

Thank you!

It's been 3 months since this last video. Does anyone know why. Is he on vacation? Hope you are well as we miss your beautiful interesting lessons.

Very useful. As a bass player, I'm less accustomed with polychords. With your exemple, I see a relation with tonal theory. You take triads and cadenza and V I or I IV give C over G for exemple. Or the relative chords, C with Am etc.. I've never thought so clearly like that, thanks. Sorry for my English, I'm french 😉

Thank you so much for this lesson

Amazing ❤️ ❤️ ❤️ teacher

Hi, please teach “Big Sky” by Cooliger. Thanks so much for all of your video tutorials and thanks in advance for considering this sincere request. Greatly appreciated 🎶💞🎶

Nice lesson

Be careful of mislabeled. G/C usually indicates G major triad with the NOTE C in the bass! I would indicate a polychord as G major triad/C major triad! Or indicate in a sidebar that the symbol / will separate two chords!

The flat 9 #11 is a commonly used jazz chord. An easy way for me to remember it is to simply flat a fifth above and play a major chord. F# / C or A / Eilat

If I was the Mandalorian I would have probably said "this is the way". LOL Awesome man !

So great 👍 and so constructive thank you so much

Thank you so much !

First. As another user also pointed out. The correct notation of polychords is one chord symbol above the other separated by a horizontal line. Slash chords are used to indicate the inversion (bass note). Second. The very reason for the existence and usage of polychords is not convenience but something completely different. Personally I find it very confusing to think about an extended or altered chord as two chords. This destroys completely my harmonic thinking, which I need for soloing and playing in general. More importantly: the very essence and reason for these constructs is missing. I leave the details of this aside here.

g is the mixolodian mode of c, not lydian ref: last seconds of video, last example on scales over polychord. No biggee, super lesson!

I thought that the forward slash indicated a chord over a * bass* note thus the term slash chords. Polychords - from what I understand - are written as the top chord name with a line underneath and the lower chord name under that...

very cool! I really enjoyed this video.

Excellent

Very nice video. I've learned a lot but I have a question. At minute 17:00 you said that G is the Lydian mode of C and it is in fact Mixolydian. Maybe you can think the C as the Lydian mode of G but not the other way. Anyways, thank you again for the insight and keep doing this wonderful videos!

Brazil thanks

👌🏆😉Very helpful, thanks

I always thought that slash chords meant that you played an alternate base note in the left hand for example C/E. C chord in the right hand and E in the left hand.

Amazing 🤯🤯🤯

I play guitar but watch your channel because you clearly explain complex topics. In your example @ 7:00 you suggest it is easier to think of Eb/A7 as two seperate chords when you invert it rather than trying to find the inversions of A7b9#11. I wonder if this is also true with the guitar given the layout of the fretboard. Any thoughts?

We miss Mangold!!!!!!

Hi, Thoughts on why they sound so different when played back to front? E.G.: C/G instead of G/C? - i guess the bass note 'dominates' so now no dominant with C/G? Some general words of wisdom around why some notes 'dominate' in a chord? A doozy, i'm sure.

So, this polychord is nothing else but Cmajor9 chord with G as a melodic tone

Eccellente.