I wrote a song and then I wrote another song, and then I wrote a third song that incorporates elements of both. Should I add transitions to make it one big 8 minute song, or leave them as different ones?
i haven't heard them, but, from the way you described it i would guess that if you put it all together you're gonna want some connecting tissue. a bit of narrative, or video, dialogue, something, a bit of non-song material to help hold things together