I did look here:
https://en.wikipedia.org/wiki/ID3It seems like normally this is just one field?
Is there a way to distinguish between ID3 standard fields and JRiver fields?
You say i need to make a custom field - but to me it looks like the Band/Orchestra separated fields are custom
Edit 1:
Hm, i thought this ID3 stuff is standardized but it seems like it's not.
Just realized that "release year" from Helium does not show up in JRiver and Windows File-explorer.
I have to put the year into "recording year" to see it anywhere else.
I thought "release year" is the whole album and "recording year" the song?
Edit 2:
Ok, i made a field Band/orchestra and that did not work. So i figured out i need to use the internal DB name.
I found in Helium what is in the attachment.
So i can make a field for everything what Helium has...
Is there a way to distinguish the fields i made and the JRiver standard ones?
Since i need to name the field the same like in Helium i can't use a prefix like myfield_