Learn music theory & train your ears regardless of your musical experience. Solfej offers over 60 Practical lessons. No more Wikipedia/YouTube rabbit holes. New lessons added every month.
EarMaster - Professional software for ear training and practical music theory on Windows and Mac.
AIVA - The AI composing emotional soundtrack music
Meludia - Listening exercises and to sharpen your ear and music theory skills
WolframTones - Listen to what I just found in the WolframTones music universe
Perfect Ear - A simple yet advanced application for improving your solfege skills.
WaveBots Editor - Procedural music and sound maker that exports to Wav, MIDI, GoatTracker and much more.