Knot-Tying for Boating, Climbing, Fishing, Scouting, and Arborists
Rope, ties

QEMU is a generic and open source processor emulator which achieves a good emulation speed by using dynamic translation.

Hydrogen is an advanced drum machine for GNU/Linux. It's main goal is to bring professional yet simple and intuitive pattern-based drum programming.

MusE is a MIDI/Audio sequencer with recording and editing capabilities written by Werner Schweer. MusE aims to be a complete multitrack virtual studio for Linux.

Freecycle is a beat slicer running on GNU/Linux platform using the QT toolkit, providing amplitude domain and frequency domain beat matching / zero crossing algorithms.