Hark! Mastering – http://www.harkmastering.com/
At Hark! Mastering you’ll ﬁnd genuine attention to detail, musicality, experienced ears and the best in modern and vintage technology to help your music fulfil its complete potential.
Sunvox – http://www.warmplace.ru/soft/sunvox/
SunVox is a small, fast and powerful modular synthesizer with pattern-based sequencer (tracker). It is a tool for those people who like to compose music wherever they are, whenever they wish. On any device.