Currently, one may move from 'Address' to 'Genre' to 'Favourites' without filling or selecting certain fields in any of these. I suggest we restrict the passage from 'Address' to 'Genre' unless all compulsory fields are filled. Similarly from 'Genre' to 'Favourites'. This makes sense as we already use 'Next' and 'Previous' buttons. In addition, it would help if the compulsory fields are marked with an appropriate symbol such as '*'.