Follow up to my previous question about Lubavitch kinnos.
I often see kinnos books labeled "Ashkenaz," "Sfard," etc. but are there really differences between the kinnos or are these labels referring to the davening often included in the books?
Additionally, and similarly, are there any differences between Sefardi kinnos and Ashkenazi kinnos? I would assume there are because there are almost always differences between the two kehillos.