Question: I'm looking for an online platform that teaches music theory in an interactive and engaging way.

If you're looking for an online service to learn music theory in an engaging, interactive way, Hooktheory is a top pick. It has a collection of tools like Hookpad, Music Theory Books, Chord Crush and Classroom that can help musicians at any level understand and apply music theory. Hooktheory's heavy use of data from real songs means you can learn through exercises and apply the lessons to your own songwriting.

Another top pick is ScoreCloud, which uses AI music notation software. It can transcribe audio recordings into sheet music with a minimal amount of human intervention, which is good for beginners and pros. It has different pricing levels and a mobile app for jotting down ideas on the go, so you can use it when and where you want.

If you want to try out AI transcription, Klangio is a good all-purpose tool that converts audio into sheet music, MIDI and MusicXML files. With tools like Piano2Notes and Guitar2Tabs, Klangio can transcribe music fast and accurately, and it's good for beginners and pros. It's got a free trial and flexible pricing tiers, so you can experiment without breaking the bank.

And if you want more general learning resources, Khan Academy has a wealth of educational materials, including music theory lessons. It's not specifically geared for music theory, but Khan Academy's structured lessons can help reinforce your learning with interactive lessons and personalized learning.