Though you may start with any one of the first handful of pieces to mark the beginning of your journey, I can't help but gravitate towards recommending this piece to be your first. It fulfills several functions perfectly:

First, the patterning employed by the composer as the basic musical building block of his music is quite intuitive to grasp, even at a first attempt. The hands tend to trade off between each other instead of playing simultaneously in parallel for long stretches. This lowers the cognitive load significantly and allows you to focus on other more musical elements of your playing like balance between the hands, the shape of your phrases, the dynamic landscape of louds and softs etc, as well as technical elements, like making sure that your wrist and shoulders remain loose and free.

Second, it almost immediately gives the player a deep and introspective musical satisfaction by lulling you into a hypnotic state with its beautifully blended simple but elegant harmonies. So you almost immediately connect to the spirit of the music without the friction of laborious and dry technical work.

It also helps that the music sounds really good at pretty much any tempo, no matter how slow, so you can take your time with it and practice very slowly at the start while still feeling deeply connected to the spirit of the piece.

Remember;

Pause the tutorial constantly to work on each moment individually, building the piece sliver by sliver.

Try and be regularly cognizant of the state of your body; don’t allow tension to creep into your playing. Breathe easily, don't strain your breathing during moments of difficulty. Relax your shoulders as you practice. And above all, keep your wrists supple, relaxed, flexible and free.

Once you finish Part 1, you can continue to the full tutorial series here.

Because This Must Be by Nils Frahm