Hi, would be great to have the comment as a tooltip. I found various requests in the forum about long comments... but from what I read and what I can think of there is not really a good solution to it, except if it popped up in a tooltip when you hovered over the comment box.
For it to be effective as a tooltip, the tooltip would need to stay displayed as long as the mouse is not moved, as comments can be very long.
one might wonder what use a long comment is, it probably isn't for regular albums. But when it comes to concert recordings they are oftened accompanied by very long info files with a lot of pertinent information regarding the source and edits, which I and others put into comments, as well as interesting things about the performance like which songs special guests played on and such.