Casio HT-3500

The Casio HT-3500 is a digital keyboard synthesizer released in the late 1980s. It was used by many professional musicians, including the likes of Depeche Mode, The Cure, and The Smiths. The HT-3500 is a 61-key synthesizer with a built-in sequencer and a variety of sound-shaping features. It has a built-in 8-track sequencer, a built-in drum machine, and a variety of sound-shaping features, including a low-pass filter, an envelope generator, and a chorus effect. It also has a built-in arpeggiator and a variety of preset sounds.