If I decide to make a roadmap for a song before I make it in a DAW, How do I compose the roadmap if I don't know what all the elements (melody, bass, drums) sound like together?
i would personally have to know the melody, lyric, chords, and tempo, in order to know the roadmap. the roadmap becomes automatically known once you get through the whole song and figure out exactly how it goes, including the melody and lyric. if you don't know any of that stuff, and then go into the studio, you might find yourself in LOST CONFUSION TOWN which perhaps some people enjoy