Hello. I know I'm kind of being a dick by going straight to the feature requests after just registering, but after checking out Construct and immediately loving every bit of it, I noticed just one problem - the MOD Object seems to be built around a very old and outdated library. The way it is coded now, it does not support stereo playback for s3m/xm/it, IT's built-in lowpass filter and any kind of sample interpolation. You could sort of live without the first two, but without interpolation, newer tracker formats (s3m, xm, it) are played back wrong (they use it by default).
Therefore I have a request - could the module playback library be changed to some other free engine? I'm a bit of a module freak, so after lots and lots of rigorous testing I can suggest either libmodplug (fully GPL compliant, a bit shaky on compatibility) or DUMB (almost balls-on accurate, BSD-style joke licence, see here and here. Unofficial, but much more optimized and actively maintained fork is worked on by kode54 as a foobar2000 plugin - sources available on that page).
If this is out of the question, is the plugin SDK capable of interfacing with Construct's sound engine? I could try writing my own implementation, though I'm not very good with C right now.