Aphex Twin has partnered with British start-up ODDSound to develop MTS-ESP, a software plugin that allows for the use of nonstandard tunings. Most Western music is created using the 12 Tones of Equal Temperament (12 TET). However, other cultures have used various tunings for millennia, such as the microtones in Arabic maqam, the complex tuning systems of the Indonesian gamelan, or perhaps most famously, the micro-intervals in Indian ragas. MTS-ESP allows users to import, edit existing tuning files, or define tuning systems using its built-in algorithms, Pitchfork reports.