The Synclavier was an early digital synthesizer, polyphonic digital sampling system, and music workstation manufactured by New England Digital Corporation of Norwich, Vermont. It was produced in various forms from the late 1970s into the early 1990s. The instrument has been used by prominent musicians.
The original design and development of the Synclavier prototype occurred at Dartmouth College with the collaboration of Jon Appleton, Professor of Digital Electronics, Sydney A. Alonso, and Cameron Jones, a software programmer and student at Dartmouth's Thayer School of Engineering.

Synclavier I
First released in 1977–78, it proved to be highly influential among both electronic music composers and music producers, including Mike Thorne, an early adopter from the commercial world, due to its versatility, its cutting-edge technology, and distinctive sounds.

The early Synclavier I used FM synthesis, re-licensed from Yamaha, and was sold mostly to universities. The initial models had only a computer and synthesis modules, later models added a musical keyboard and control panel.

Synclavier II
The system evolved in its next generation of product, the Synclavier II, which was released in early 1980 with the strong influence of master synthesist and music producer Denny Jaeger of Oakland, California. It was originally Jaeger's suggestion that the FM synthesis concept be extended to allow four simultaneous channels or voices of synthesis to be triggered with one key depression to allow the final synthesized sound to have much more harmonic series activity. This change greatly improved the overall sound design of the system and was very noticeable. 16-bit user sampling (originally in mono only) was added as an option in 1982. This model was succeeded by the ABLE Model C computer based PSMT in 1984 and then the Mac-based 3200, 6400 and 9600 models, all of which used the VPK keyboard….