Hello home recording folks. I have a stereo track, guitar and vocals, a folk thing. I want to be able to build a song around it, but the tempo is all over the place. Is there a program that can do this for me? or do I have to take the song bar for bar and adjust it to the grip, sometimes using time stretching.. Please let me know if there's an easier way. I don't have the session, only a stereo track with guitar and vocals recorded without a metronome and the tempo is all over the place. Thanks.