Okay so basically, we are the reincarnations of two musicians who not only did not like each other, at all, but also died very young. We don't have the initial memory of that, but every now and then, you'd have a very vivid dream that sticks in your memory. However, as much as they would've cringed in our past lives, we start to fall for each other over time- something that could've happened if they lived longer.
((We could do real people or made up people as the reincarnations, it's up to you.))