creating custom field for comment tag

[bob]

A number of my mp3 files have multiple comments tags.  I would like to know if it is possible to create a custom field for one of the comments.  For example, let's say I have a file that includes the following comment tags.  Currently the comment field shows all the comments concatenated together.  I would like to be able to search on just the Comment:Songs-DB_Occasion:eng tag.  Is this possible?

Comment: [Description: ID3v1 Comment] [Lang: XXX]
80s
Comment: [Description: Songs-DB_Custom1] [Lang: eng]
80s
Comment: [Description: Songs-DB_Occasion] [Lang: eng]
Love
Comment: [Description: Songs-DB_Custom3] [Lang: eng]
Westcoast
Comment: [Description: Songs-DB_Custom4] [Lang: eng]
American; USA
Comment: [Description: Songs-DB_Custom2] [Lang: eng]
Male Vocalist; Oldies