The GNOME Session Manager is in charge of starting the core components of the GNOME desktop, and applications that should be launched at login time. It also features a way to save and restore currently running applications.

findimagedupes is a commandline utility which performs a rough "visual diff" to two images. This allows you to compare two images or a whole tree of images and determine if any are similar or identical. On common image types, findimagedupes seems to be around 98% accurate.

A library, which provides quad-precision mathematical functions on targets supporting the __float128 datatype. The library is used to provide on such targets the REAL(16) type in the GNU Fortran compiler.

Bristol is a synthesizer emulator application. Bristol uses the sound card PCM generator and can be MIDI driven, furthermore it can be set to use the low latency scheduling feature of the kernel, reducing audio under runs. It can handle any number of simultaneous synthesizers (they all connect to the same engine). It supports splitting and layering the keyboard with multiple synthesizers on a single midi channel. Currently Bristol emulates the following keyboards: Moog Mini, Moog Voyager (Bristol "Explorer"), Sequential Circuits Prophet-5, Roland Juno-6, Yamaha DX-7, Hammond (single manual), Hammond B3 (dual manual).

mp3tag.rb is a ruby class to read ID3v1.0 an ID3v1.1, and write ID3v1.1 tags in MP3 files. These tags save meta information about the music piece such song name, artist, album, genre, track number and a comment.