UPDATED: Search-Replace Tag Text v3.4
Search-Replace Tag Text performs a search-and-replace with the text in your choice of tag (Song Name, Show, Artist, Album Artist, Album, Composer, Comments, Genre, or Grouping) in the selected tracks or all the tracks in the selected Playlist. Features case sensitivity and whole word match options and dry run preview.
This latest version enables the window to be resized horizontally in order to expand the width of text entry fields.