Hello I can provide a MIDI KARAOKE file that can the more can the less ..it is possible with the free editor MUSESCORE starting from an orchestrated MID KAR to make his score to measure ..with the keys and instruments that we want ..tell me if it suits you .
Hello Tools like that, there are others on the web. There is Y A L P . I O C H O R D I F Y . N AND RIFFSTATION But frankly I think that SONGLE.JP is the one that gives the most details. You have to scroll down the web page to see the buttons at the bottom left that give even more details about the analysis that has been done on the audio from Youtube.Even the notes of the melody are - visible - in a vertical piano and the notes are in a piano-roll mode...it's a bit experimental but the Japanese are very good in analysis. Locally there is CHORDTRACER from IPE for a fee and there is SONIC VISUALISER and its Add-on Chordino ..all free of charge which give about the same information as SONGLE.