Originally Posted by alparrott
In the sense that all sounds have pitches, sure; but I would classify most sounds as either tonal (melodic) or percussive (rhythmic).
You can make a rhythm out of one sound, with practically unidentifiable or indistinguishable tonal properties. But my point is, melody is composed of tones (notes) set to rhythmic structures.
Sure, your definitions work for me in regard to conventional Western music, which would cover all practical means and purposes for 99.9% of western musicians. My response is about looking the question in a theoretical sense whereas you're taking a practical approach. Each approach has its worth, depending on context.