Thanks for your comment. I’ve wrote three versions of the etude that there are links to download all of them for free. You can find the links in the Youtube caption. In every new version the left hand has more important role. This is version I that you can see in the video, version II has more complicated left hand arpeggios with 16 notes and version III is unison like the Hanon. You can also combine these versions yourself. In addition I should say that this etude can be played by other instruments as well and in this case they don’t need a separate left hand part.