@Oso Fam I gotchu. I have been meditating with certain music though too tap into certain energies that i want to invoke or frequencies to get on too manifest certain things. Why you think we dont discuss the importance of music into tapping into certain energies.
Music is very important. Not sure why it's not talked about more. Music can be a great ally in altering one's mood and thoughts, and thus enhancing one's meditations.
Chakras and kundalini are real. Chakras are the popular name for the major energetic junctions in your energy body, and kundalini is the popular name for the powerful life force energy that's sitting in the bottom of your spinal column (the coccyx). Through meditation, breathing exercises, yoga, and diet, the initiate can move that energy up the spinal column and connect with the powerful energy centers in the head (pituitary, pineal, hypothalamus), thus accessing the higher levels of one's nature.
There are ways to cheat and cut corners with this but I would highly suggest taking it slow and adjusting methodically to the physical and mental changes that come along with kundalini practice. If you go too fast before you're mentally or physically ready you can start hearing, seeing, and feeling things you're unprepared for, or if taken too far you can actually internally combust. Because you're literally dealing with FIRE.
In terms of entities feeding off our energy, that's true but I don't like getting into it because people always take it the wrong way and get scared. The best advice I can give you is when you're in your meditations to focus on clearing your energy field of negative energy and negative entities. Also feel the connection with the benevolent entities of the universe, they are more powerful anyway, which is why you have nothing to worry about. But people never hear that part they only hear they have entities on them and start bugging out.
Edit: Not sure why everything is underlined