This app interacts with the Wed MIDI API in a way that allows the user to input MIDI notes and get visual and aural feedback regarding the input. I.e: it identifies - via the tonaljs library - the chord that is being played, and plays the corresponding tones using the tone.js library.

• MIDI Input
• Visual feedback (keyboard on screen)
• Aural feedback (notes via AudioContextAPI or possibly via a third party library if that's easier)
• Triad recognition
• Tetrachord recognition
• Basic UI

• Input without a MIDI device (issue #1)
• Volume control (issue #2)
• Input history reflected on the UI (issue #3)

• Key selection
  • Display accidental based on selected key
• Key suggestion
  • Suggest key based on current chord and/or input history