Meludia - Listening exercises and to sharpen your ear and music theory skills
Abundant Music - Generate royalty free music with a simple but very powerful procedural music creator
GNU Solfege - GNU Solfege is free music education software.
AIVA - The AI composing emotional soundtrack music
Auricula - Practice your sense of hearing and learn to identify intervals for your musical development.
Stable Audio - Make original music and sound effects using artificial intelligence, whether you’re a beginner or a pro.