I need a code writer to make an app that will allow a list of notes to be organized in a music playlist fashion, with drag-and-drop capability, and the features of tying notes next to each other, as well as blocking a note from being moved above or below another as specified. This will help organize a timeline when given certain clues as to which event happened before or after another, and the more notes that are tied together, the more the timeline is correctly mapped. This app will sort of be like a tool for solving Einstein’s Riddle, but specifically for events in a timeline, to understand the chronology.