Depends on how much you make it your own. What "making it your own" means exactly is obviously highly subjective and needs to be determined on a case-by-case basis. Slowing a riff down (rhythmic augmentation) is probably enough to qualify.
It's also essentially the whole point of lead sheets. You take a basic framework written by someone else and expand upon it in a new way, and depending on how much you do to alter the sound of the chart, it becomes your own interpretation. It's what makes harmonic recontextualization so fun. You take a riff or a melody and change the underlying chords in a way that makes everything else sound completely different.
|