My Recommendations

Websites

• Musictheory.net
  https://www.musictheory.net/exercises/note

Notes: Customisable quizzes and lessons that cover the fundamental concepts of music

• Teoria
  https://www.teoria.com/en/exercises/clef.php

Notes: Customisable quizzes that cover the fundamental concepts of music

• Tone Savvy
  https://tonesavvy.com/music-practice-exercise/2/note-name-sight-reading-treble-staff-game/

Notes: Customisable quizzes that cover the fundamental concepts of music

• 8notes
  https://www.8notes.com/theory/

Notes: Online lessons that walk you through the fundamental concepts of music

Hardcopy

• AMEB Theory of Music
  Cost: $24.95 - $30

• Master Your Theory
  Cost: $20.00 - $25.00

• How to Blitz Your Theory
  Cost: $20.00 - $25.00

Apps

• StaffWars
  Cost: $0.99 - 1.49

Notes: Available on Apple or Google Play