v5

• significant code quality improvements, documentation and minimizing repetition in backend
  applied OOP - most notably song class
  inheritance, enum, universal methods to simplify code
  streams and hashmaps for advanced processing
  removed IDE parameter

• combined view
  songs yet to be released are differentiated
  when multiple artists collaborated on a song, they will all be listed
  clicking a row will copy artist(s) and song name to clipboard, for easier search