[featured_image] Download Download is available until [expire_date] Version Download 50 File Size 0.12 KB File Count 1 Create Date February 23, 2023 Last Updated February 24, 2023 Yamaha DX Introduction Booklet from 1983 Given out with DX7 and DX9 orders when the synths first shipped. It's a guide to the DX7, DX9 and FM programming written by Dave Bristow.