YAMAHA DX7 II FD. The keyboard is used but works perfectly. There is no case. The keyboard comes with an original Yamaha memory card. The Yamaha DX7 was the first almost entirely digital music keyboard based on FM synthesis (actually a phase modulation and not frequency modulation), conceived by John Chowning and marketed between 1982 and 1986, with a later version known as DX7II or DX7 mk II, equipped with floppy disk (in the FD version), between 1987 and 1989. The rack version of this instrument is called TX7. The DX series also includes other models based on the same synthesis as the DX7. Among them: DX5 (version with 76-key keyboard), DX1 (version with keyboard with 73 weighted keys), TX816 (modular rack instrument with 8 modules, each with the features of a DX7), or TX802 (rack version and direct descendant of the DX7 mk II). At the same time, cheaper instruments such as the DX9, DX21, or TX81Z (rack version) were also produced using the same synthesis method. The Yamaha DX7 features: 6 DCO oscillators for each of the 16 polyphony items (called operators) 1 general sinusoidal LFO 1 DCA envelope generator per voice speed sensitivity and after-touch controlled by an additional microcontroller 6305 Speed sensitivity can be programmed linearly (like acoustic instruments) or logarithmically to suit your hearing sensitivity. Small display with 2 lines of 16 alphanumeric characters 2 wheels for pitch and modulation 32 memory sounds for pre-programmed sounds, to which are added those on cartridge containing an EPROM 27(c)256 programmed by the instrument itself MIDI port without the OMNI function, still not adopted at the time and with speed response with the maximum level at 99, although the MIDI limit is 127. The 2 synthesis integrated, in the series of December 1985, are: YM2128 and YM2129, the main microcontroller is the 6303 and on the mains supply plate there is no protection against voltage variations, which is 220 V. It is an ever-present instrument in 1980s pop music. Below you will find just a few examples of musicians, or their keyboard players, who have used it: Al Jarreau Alphaville Atmosphere Banco del Mutuo Soccorso Beastie Boys Bill O’Connell Bon Jovi Brian Eno Carla Bissi Chester D. Thompson from Santana Chicago - (in the song “Hard Habit To Break” from the album Chicago 17). Chris Ingles from Shadow Gallery Christine McVie from Fleetwood Mac David Paich David Sancious Depeche Mode Devo Dire Straits Earth Wind & Fire Eiffel 65 Electro Reverse Enya Fabio Badalamenti Franco Battiato Front 242 Geddy Lee from Rush Gen Rosso George Duke Harold Faltermeyer in the song “Axel F” Herbie Hancock Howard Jones (especially in the first album) Jan Hammer used the DX7 for the soundtrack of the TV series “Miami Vice” Jean-Michel Jarre used the DX7 in his album Zoolook Jens Johansson from Stratovarius Joe Vannelli (for Gino Vannelli) John Lawry from Petra Jordan Rudess from Dream Theater Kavinsky Kitaro Kim Wilde Kool & The Gang Kraftwerk Les Misérables (musical) Madonna Magne Furuholmen from A-ha Matia Bazar Matt Bianco Michael Jackson Midge Ure Midnight Star[1] Mike Lindup from Level 42 Mike Post Nine Inch Nails (used the DX7 both in studio and during live performances) Observe & Control Patrick Moraz from The Moody Blues Paul Young and Adrian Lee from Mike + The Mechanics Pet Shop Boys Pete Bardens used the DX7 in his album Seen One Earth Phil Collins Philip Glass in the 2ns, 3rd and 5th Glassworks Movements Pooh Queen Richard Tandy from Electric Light Orchestra Rocco Tanica Ryūichi Sakamoto Scooter Steve Porcaro Stevie Wonder Sting Stock, Aitken & Waterman Stratovarius Sun Ra Talking Heads Tangerine Dream The Cure Thompson Twins Tina Turner (especially in the album Private Dancer) Tom Coster Tony Banks from Genesis Tony Kaye from Yes Toto (who even collaborated on the production of a cartridge with some of their sounds) mentioned in “Cool Dry Place” by Traveling Wilburys. U2 Ultravox Underworld Van Halen BBC Radiophonic Workshop Startled Insects VOCALOID, you can see in Kocchi Muite Baby’s PV that Hatsune Miku takes a Yamaha DX7 Rhianna Piper Yes (in the 1983 album 90125, the DX7 is used profusely) 99 Posse, you can see it in the video “Cattivi Guagliuni”