Anything relating to 4 OP FM synthesis. This primarily relates to the various Yamaha 4 OP synths such as the TX81Z and the FB01.

Yamaha V50 Four Op FM Synth Workstation

Yamaha V50 Introduction

Definately an underdog synth, the Yamaha V50 is a forgotten synthesizer from 1988. Originally meant to be the little brother to the Yamaha V80 (that never made it to market) the V50 came at a time when PCM based synths like the D-50 and M1 were slaughtering Yamaha's FM line in the big synth marketplace.

The V50 is a keyboard / workstation version of the Yamaha TX81Z, complete with sequencer, effects, drum machine and a floppy drive. In fact, some have said that it was Yamaha's first true workstation keyboard.

Yamaha WT11 Wind Synthesizer

Yamaha WT11 Intro

Yamaha's WT11 is little known outside of MIDI wind controller users. Released in 1989, the WT11 is a Yamaha TX81Z synth in a sleek, curvy, very 80s, desktop form factor designed specifically for wind synthesis and MIDI wind controllers. The WT11 includes the special WX connector for Yamaha's WX7 and WX11 MIDI wind controllers.