With the full disclosure that I used to work for muvee Technologies (muvee.com), I'd like to point out that muvee Reveal's "styles" are authored in a scheme dia

With the full disclosure that I used to work for muvee Technologies (muvee.com), I'd like to point out that muvee Reveal's "styles" are authored in a scheme dialect. Yes, that's a commercial consumer level fun product featuring scheme. Incremental exploratory development of the DSL for authoring these "editing styles" was made pretty easy using macros and if you ask me to reimagine it, it won't be easy for me to think of another easier route. For those saying "macros aren't useful for day to day code", please consider the possibility that you wouldn't have to write much of that "day to day code" if you had macros in your toolkit. Impromptu, (fluxus) and DrScheme itself are some cool dudes where the productivity per person on those teams appears disproportionately high compared to other projects.