Some may be pleased to know that I have just had confirmation that the beginnings of the catalogue are now available online. Hopefully clicking this link should take you to it. A small start, but it will be added to quite quickly from hereon, as I transfer my excel spreadsheet into the catalogue system, check it, and mark it as catalogued.
The link will bring up a list of records. However, it may be easier to view it as a tree, which is how the structure is designed. To do so, go into one of the entries and click on the red 'seal'. This will make it more obvious how it is laid out, and will highlight the main subheadings which contain detailed descriptions of the genres as a whole rather than specific items.