Yamaha PSR-D1

The Yamaha PSR-D1 is a digital keyboard synthesizer released by Yamaha in 1998. It was designed to be an affordable and easy-to-use keyboard for beginners and hobbyists. It has been used by many musicians, including the likes of Coldplay, The Killers, and The White Stripes.

The PSR-D1 has 61 full-size keys and a built-in sound engine with 128 voices and 64 drum kits. It also has a built-in sequencer, allowing users to record and playback their own compositions. Additionally, it has a variety of effects, including reverb, chorus, and delay. It also has a built-in metronome and a transpose function, allowing users to easily change the key of a song. Finally, it has a built-in MIDI interface, allowing users to connect the keyboard to a computer or other MIDI devices.