Package: puredata-core Version: 0.43.0-4 Some kind of wishlist bug, I suppose puredata-core is meant to provide a strict vanilla version of puredata. Don't know how to argue but I don't feel Gem is particularly essential for puredata. By default, aptitude installs recommended packages. Gem in turn depends on several multimedia libraries. Eventually, I would understand "puredata" package to recommand Gem, while "puredata-core" would not.
That's all, thanks ;)