EarMaster - Professional software for ear training and practical music theory on Windows and Mac.
X-Minus.pro - X-Minus.pro is an artificial intelligence-based tool that allows you to separate vocals from a song.
Meludia - Listening exercises and to sharpen your ear and music theory skills
Al Vocal Remover - Al Vocal Remover is an online audio editor that allows you to remove vocals and extract karaoke separately from a song.
GNU Solfege - GNU Solfege is free music education software.
Vocal Extractor - Vocal Extractor- Karaoke Maker (iPhone) is an app that allows you to separate karaoke and vocals from a song or audio file.