Ough, I am getting behind in following and answering your topics.

.....The music, occult and Bach wil be for later this day... Now on trance.
How do you personally enter magical trance?
How do you know you’re in it?
What does it feel like for you in the moment?
I have different ways of entering a magical trance, and I can’t really say that I have a favorite one. I’m with Lucien that there are for me levels of trance with different sweet spots, different kinds of experiences, different nuances. First of all, people talk very ‘method-like’ when they are talking about trances. But trance is a state and not a method. I hope that I manage to bring over experience without falling in method-peptalk. I don not so believe in the methods but rather in describing feelings.
One of my earliest experiences in trance were the moments that are in the middle between being awake and falling asleep in the evening when going to sleep. Somehow I was able to make those moments longer, and the somehow is done by being aware of that it is there. It is tempting to value things immediately when being in the experience and to start thinking in words. However, that is the moment that the waking part of the brain becomes alert. So somehow one have to recognize that in between state, without being in eureka and without valuing. When tired, it it not easy to extend the in between state because of falling asleep but that just takes time and practice. If people practice it 4 or 5 days in week, things will sink in. Over time a person will become skilled in being in this state while using the mind to do some magical acts. Now, this is the way I reached trance from my early childhood days. You can stay in surface level and doing some enchantments and you can sink deeper in it and even reach the level of astral projection. For the latter I need in myself the feeling that I as a person and my body are not important anymore. That I create in myself the feeling of not being emotionally attached to my body. In my mind that is a partly dead-state. If my body dies and my life is over, it is OK by then. Once in that feeling I can flow away from my body and do what I want to do. And I start flying to where I want to be.
How do I be aware of being in a trance state? Sounds differ, colors that I see in my mind, I don’t think in words anymore but only on a sensation level. If I use words in a spell or enn, I see the words projected or being written before my eyes, or I hear it without using my bodily voice. My body feels different too: the energy that is flowing over my spine is very present, every pore in my body opens up, I am connected.
Another way of being in trance is feeling a warm tingling sensation travelling top down over the body and when I go up again with my attention, my body seems to dissolve in the surroundings. From that point I can choose for different levels of experience. I can dissolve completely in my surroundings or in a object, plant or stone (or whatever) and experience their energy and flowing. Or, I can choose to dissolve and see nothing anymore but darkness. After a few minutes of darkness there is a geometrical figure in 3D that gives light and that flows, that geometrical figure is me. I can build an intent by building another figure and then connect both. I can trance like this both when sitting or when lying down. When siiting I need a posture where my spine feels open enough to keep things flowing to the body. I learned this experience with the warm tingling sensation when I was in the hospital when my Crohns Disease got out of control in 2012. I was doing that for a little relaxation and because of the boredom but I quickly discovered more possibilities. Scared one of the nurses because my face had the look of not being alive anymore.
I have another experience also: I string together 10 to 15 deity names and chant that on repeat. There is always a moment where my voice starts to deepen, where my chest opens up and where my voice starts to gain power and command. The air around me becomes less dense, I really feel I can expand my being. I feel bigger than my actual body and can grow as big as I want. If I transfer my being to a sigil or intent my will, I have enough to make changes. After this, I need more grounding than after other experiences. I can have a somewhat the same experience if I string together all the names that my familiar has had over time, but we can grow to a state where we can start to travel together....... the words of the Merseburger enchantments are a way too, I experimented with this the last period. Plant names in Latin where you work more often with, are a good way too. You can do that with poison herbs that are traditionally used for flying
@psichevoluzione The feeling of expanding myself is different every time. It can grow very slowy, but it can be explosive too and everything in between. Both are just different experiences, the magic is in both cases similar in how big the effect is.
For peeps who have a rocking chair: start to experience how rocking can take your mind into the twilight zone. Very accessible for both beginners and people with lots of experience. Singing can call trance states too, but you have to know your parts very well and still can watch and react to the conductor. I have reached trance states in all kinds of other ways too: sitting in a train and just silently naming what you see in when looking outside, nodding with my head, stirring a pot of soup, knitting while speaking out enchantments, while twiddling thumbs. If you know how all those different states feel, you can reach them at any time and everywhere, even without ritual.
One thing about the bodily sensations: however I loose the attachment to my body in a trance state or AP, in the beginning my body is very present. I can't flow into a trance state when I am having cold feet (yes, always those women with their cold feet) or when hungry. That is something people need to discover themself.