Imagine you have a bunch of audio samples you want to load up while live coding with Impromptu, but you can't remember exactly their names. It would be handy to open the corresponding Finder window directly from Scheme, without too much clicking around. Doable or not?

If you're coming from Lisp, and then start using Scheme (or the other way around) there are a few small differences between the two languages that it's useful to always keep in mind. I tried to switch languages a number of times, but inevitably I found myself once again wondering: how do you say progn in Scheme?

LISPers are a definitely a rather eccentric developers' community.

When you're Impromptu-ing but don't know the meaning or syntax of a function, the usual thing to do is calling (help function-name) to get some help about that function, or (help function-name #t) if you want to see also the examples associated with it. The help text gets displayed in the log view, so that you can then copy/paste what you need from there. Quite useful, but nonetheless I always find myself fighting with the log window: too small, hidden away by other canvases, or not readable anymore cause after calling the help function I've evaluated other stuff that has moved up the much needed help-text.

Hey there - this morning I checked out a nice screencast by Ben Swift and was struck by the if-mod construct he's using. It's a really useful shortcut that saves you from writing a few (possibly distracting) parenthesis, so I tried to recreate it myself.