Well, here's the thing. You will still use those ideas in different ways.
When I was a Christian Witch, the way I practiced meditation was to recite the rosary as a form of mantra. I still do the same thing now with different Gods. There are many different ways to practice meditation or something similar, but the one most often talked about is more secular.
Visualization is a good skill to have no matter the practice, it's good for mundane reasons just like meditation.
"Energy" is a whole 'nother ball game (and post). But it's still useful to have some different ideas behind it.
Those are in essence some of the "basics" (and some have basics to them). They are ground work that can be used in a multitude of practices. But there's the thing. "Where do you go from the ground floor? What's best for me? What should I practice past this?"
The answer will vary for people. Magic isn't all about meditation, visualization, and energy work. There's a style to every person's magical practice. And you have to decide how you want to color and shape your particular brand.
Personally, my brand of witchcraft has heavily relied on spirit work. My "basics" here were understanding how to build a space, keep a space, "listening", and how to provide service to the spirits. I still use those practices discussed before. Meditation is my time focused solely on the spirit. Visualization helps me get a vague idea of the spirit, and sometimes, looking at there life they lived (a form of devotional activity). "Energy" work could be argued in the entire process, but I suppose it would be best seen in spiritual workings which involve them; they give aid in things I attempt.
You do not have to stick to a particular path to the "T", none of us do. We may start with a tradition, say hoodoo, but we always have our own style to things. No witch stirs the cauldron the same. Research history, research lore, research actual historical and modern practice, do your homework (empirical). Those things will color YOUR correspondences, YOUR basics, and YOUR daily practice.
So ask yourself, what is MY craft?