Yamaha TG300GRAY is a digital synthesizer and tone generator released by Yamaha in the late 1980s. It was used by many popular musicians, including Depeche Mode, The Cure, and New Order. The TG300GRAY is a powerful and versatile instrument that allows users to create a wide range of sounds. It features two oscillators, two filters, two envelopes, two LFOs, and a built-in arpeggiator. It also has a built-in sequencer and a variety of effects, including chorus, flanger, and delay. The TG300GRAY is a great choice for those looking for a powerful and versatile synthesizer.