SunVox - SunVox is a small, fast and powerful modular synthesizer with pattern based sequencer (tracker).
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
FamiStudio - FamiStudio is very simple music editor for the Nintendo Entertainment System or Famicom. It is designed to be easier to use than FamiTracker, but its feature set is also much more limited.
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
MOTU Digital Performer - Get inspired, then refine your mix — all in a singular workflow.
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.