DarkWave Studio is a powerful yet free, open source, Digital Audio Workstation for Windows that contains a modular Virtual Studio, Pattern Editor, Sequence Editor and Multitrack Hard Disk Recorder.

DarkWave Studio also comes with support for VST/VSTi instruments and effect plugins.

Moreover, this virtual studio has a modular design allowing machines to be connected in an ad-hoc fashion. The pattern editor enables the quick creation and modification of patterns by clicking to add or delete notes and dragging notes to move or resize them. The sequence editor allows you to queue patterns to play for each control track in any arrangement, enabling reuse of patterns and quickly re...Read more about DarkWave Studio