HammerHead is a free and simple software drum machine which is similar to the Roland TR-909 and that you can use it to create techno loops and jungle patterns, and record your actions to a high-quality, noise-free WAV or RAW file for use with your sampler or sequencer.

It comes with 23 separate drum patches and six complete loops, plus a feature to implement banks with six samples of your own, making a total of 35 samples that can be used at one time. HammerHead also features adjustments for tempo, shuffle, feedback, and distortion, as well as the ability to export drum loops by measure or by entire session.