HI Notes. I have done this on several songs. Here is an example. The flute is midi (Dimension Pro) generated from the lead vocal. I did this with Melodyne. The good news is that you don't even need to buy Melodyne. The free version can do this. (I discovered this when my trial version expired).

Just open the wave file with the vocal in Melodyne. Adjust the tempo shown to match exactly that of the song and then do a save as midi. Then import the midi file into your DAW, edit some of the midi notes and assign your synth track. Easy and FREE. let me know how it turns out.

SAMPLE SONG WITH AUDIO TO MIDI


LyricLab – Where words become music https://www.lyriclab.net/