component: database

• Song model and repository
• Play queue model and repository
• Play history (mutable, reflection of queue) model and repository
• Play log (immutable, records actual past playback) model and repository

component: core

• Song packet emitter
• Play queue generator

component: console

• Command to inspect song packet sources

component: discord int.

• Automatic joining of allowed channels
• Playing music
• Selecting codec quality

component: rest api

• Wind:
  • Forward one
  • Backward one
  • Forward n > 1
  • Backward n > 1
• WS opus stream
• Ogg+opus stream
  • OOB dynamic control for quality & normalization
• Playback event stream (current song + packet as timestamp)

component: web

• Play/pause button
• Wind one forward/backward button
• Quality+norm configuration modal
• Browser multimedia control & metadata support