I was going over quite a lot of answers that are already posted and I've figured out that I could ask this question anew. My perspective is that I have melodies coming to my head and I record them with my voice. I will be learning music theory, piano and Ableton Live.
There is basically C, D, E, F, G, A and H on a piano keyboard and there is these black keys, which are Sharps / Flats. I am wondering how any melody that can come to my head (I have like 12,000 recorded so far, for like 4 months) translates into this. Any of them can be always played on a piano keyboard? Are sharps / flats some secondary type of notes, or is this something like 1-1-1-1-1-1-1-1-1-1-1-1 (12 sounds of equal importance) just layed out like this on a keyboard. And with this, there is no more sounds, they dont exist? So what exists in the end is these 12 and different octaves, which are on the keyboard (low to high). So there could be more octaves but no more than 12 of these sounds in each set? Or there can be, can there be like 15 or 17 or 30-something making up an octave? Do these 12 sounds translate somehow in any actual value (like Hertz)?
Just trying to understand - connect the music that comes or may come to my head with this piano keyboard. This is just "engraved in stone", that's how this is and it cant be different or what this is? I've always had an impressions that white keys are the main ones and the black keys are somehow secondary ones. I was watching some vids on Youtube and reading answers from here, but I don't get it yet.