sentences:  The SY/TG range as a whole was discontinued sometime between 1995 and 1997.The SY77 and SY99 were replaced as the flagship Yamaha synthesizer workstations by the W7 and W5, respectively.However, the SY77 and SY99 were the last Yamaha "flagship" workstations to be natively capable of the fully fledged FM synthesis that had been introduced with the DX line.