Udemy #5 Play Piano Trick: EZ Polychord Hands play Advanced Chord

The lack of musical information becomes sick, she confuses the music harmony students with wrong terms when she talks about polychords. First of all, she is not using polychords, She can't never say that is using C chord with Em chord, it's stupid, therefore, the whole harmony has common notes with other chords, but, depending on the harmony function, there're many common notes that can't be renamed, so there is no polyacord, this will confuse your head, since polytonality already exists, and you can't pick up terms already used in music to recycle into other false things.

When you think that comes another lesson in another video, she repeats the same bad task, the same video. You can visually notice that she has never played the piano in her life, we can see when she thinks on the chord to be played, her stumbling hand to try to match the notes, it is visible to see the hand swing to rise, when it should go down.
Arpeggios with fingering and hand position that will never serve to play fast, just watch the way she leans on the piano.

She just talked about C with E and F with Am in this full videos.

She repeats the same video several times, it's unbearable to watch. What she tried to teach is just arpeggios, which is subjective and one can start from any note, in music there is no logical sequence or rules for such task, each one does his own.
Jazz never uses it, what they does is mixing arpeggios with scales, then we call runs, as is used by 'Art Tatum', classic music uses a lot of arpeggios.

The greatest popular pianist who has mastered this subject was an American pianist from New York 'Carmen Cavallaro', he used arpeggios having 7th and 9th notes inside the octaves, but never the fundamental notes of chords, like 3rd or 5ths to close the bass and the soprano voice.

Nor try to do as Cavallaro did, just few achieved that feat, his arpeggios and runs are clean with technical precision of the greatest excellence, the most perfect ever performed on the pop classic piano, in fact, 'Cavallaro' influenced the greatest popular pianists of the twentieth century, among the greatest are: Liberace, Pedrinho Mattar and Jon England.

This Udemy video will not help you at all, I have never seen anything so deplorable and bad, no professional plays the piano using these way of octaves, which spoils any arrangement.

Anyway, she must play 'Guzheng' very well.

Carmen Cavallaro arpeggios and runs: (he has a Latin DNA in his pianistic touch)
Perfidea
Chopin's Nocturne op.9 - Eddy Duchin Story
Voodoo Moon
Solamente una vez

Pedrinho Mattar arpeggios and runs: (an authentic touch of Brazilian music, without mixing with Cuba and others.)
O que será
Wave
Lamento
One note samba, Little boat

Jon England (he came a bit late, when some idiot had already rated it as elevator music, he only plays in casinos in Las Vegas)
Manhattan

Liberace (The biggest contribution of American show business, talent and style to spare.)
I Left My Heart In San Francisco