functional programming – Should I use Dr. Racket for learning Scheme?

I’ve been fiddling with software development for a couple of years and in trying to get into the gist of things I came across SICP, which uses Scheme.

Basically what I want to do at this stage is to store exercise/test .scm files for study. Should I use Emac or Dr. Racket ? Or none of those?

Thanks!