CakePHP + jsTree + html5 Filesystem API + Validation

Create part of a cakePHP based GUI / and backend controllers for an internal application I'm writing. This application will allow a user to upload music albums to a database. I need the CRUD portion written for this. The frontend Frontend will use jsTree. The tree will a Hierarchical -- Tree structure of directories containing songs and directories. Tree structure will be in stored as a Nested Set using CakePHP's built in Tree behavior. (You can use a different behavior if you choose). Create the ability for the user to select directory containing songs (or other directories containing songs), and upload them to the server recursively. Create the ability for user to select a song or a directory, and delete it recursively (the node and all children). Give use the ability to edit song name. Create a sort function, which will sort all albums at each level , and will sort all songs in each node. Nodes should not however be moved from their correct position in the tree. User will need the ability to add a directory, which will be persisted to the server. In addition, audio files will need to be validated -- only allow MP3 & M4A files containing valid audio. Files will be stored in an associated model. When creating a record, we will need to 1) extract the ID3 tags from the audio file, and 2) convert the file to WAV format. In addition, the ID3 Tags will need to be extracted into another model called "tags", and will need to be joined to that Tables/model are to be called 1. Nodes id lft rght parent_id type (album or song) 2. Song info id node_id original_file blob converted_file blob artist genre 3. Tags id name 4. tags_nodes id tag_id nodes On frontend, when user selects a song, the details should be populated in a div which becomes populated with song details.