Yamaha QY20

The Yamaha QY20 is a portable music workstation released by Yamaha in 1991. It was designed to be a portable, all-in-one music production tool for musicians on the go. It features a built-in sequencer, drum machine, synthesizer, and a variety of effects. It also has a built-in MIDI interface, allowing it to be connected to other MIDI devices. It has been used by a variety of artists, including Moby, The Prodigy, and The Chemical Brothers.

The Yamaha QY20 works by allowing users to create and edit musical sequences using its built-in sequencer. It also has a drum machine, which allows users to create and edit drum patterns. The synthesizer allows users to create and edit sounds, and the effects section allows users to add reverb, chorus, and other effects to their music. The MIDI interface allows users to connect the QY20 to other MIDI devices, such as keyboards and drum machines.