Change wave file (music tempo) acording to a Color Noise (manipulating inter-beat interval)

Hi, Some one can help me please. I have a music and I need to change

I need to embedded different levels of noise (e.g. pink noise, brown noise) into a well-known melody by manipulating the inter-beat interval (interval of notes).

There is a simple way to do this? If not anyone knows any software that are able to do this?

kind regards Armindo