Singer OFF

Experimental app to remove vocals from songs, leaving instruments only. Please let me know on which albums it works well.
Depending on how the song is recorded, the app may be able to remove 30-90% of main vocals (unfortunately it still removes drums too).
If the algorithm works well let me know and I will make a complete music listening program with playlists.

The app is a proof of concept and if you think it would be worth developing into full feature app help me see that the program is needed.