Several of the background sound files have a horrible screech that makes it impossible to concentrate on anything until megaglest is muted. Pressing k does not work.
I have checked that this is really an issue by downloading the latest version of some of these files and playing them directly to alsa hw:0 (normally I use pulse)
version: 3.7.1-2+b1 (Debian)
scope: tilesets/
bad: tilesets/autumn/sounds/nightime.ogg
bad: tilesets/dark_forest/sounds/night.ogg
good: tilesets/desert2/sounds/night.ogg
good: tilesets/evergreen/sounds/night.ogg
bad: tilesets/fernland/sounds/night.ogg
bad: tilesets/forest/sounds/night.ogg
bad: tilesets/jungle/sounds/night.ogg
bad: tilesets/karningul/sounds/night.ogg
bad: tilesets/meadow/sounds/night.ogg
tolerable: tilesets/mediterran/sounds/night.ogg
bad: tilesets/pine_peat/sounds/night.ogg
bad: tilesets/scrub_land/sounds/night.ogg
good: tilesets/spring/sounds/night.ogg
good: tilesets/**/*.wav
good: tilesets/**/*day.ogg
good: tilesets/**/rain.ogg
good: tilesets/**/hawk.ogg
good: tilesets/**/owl.ogg
good: tilesets/**/rooster.ogg
good: tilesets/**/hell.ogg
good: tilesets/**/mudchute_cow_1.ogg
good: tilesets/**/wind.ogg