sentences:  Applying a formant sequence to a sound allows a complex, evolving sound to be programmed in a relatively short time.90 formant sequences were supplied with the FS1R.Yamaha FS1R Front Panel
  Yamaha FS1R Control Screen
  Sakura Free FS1R Editor
  
  A 4-part synth with 32 voices was viewed as inadequate by 1998's standards [subjective] although the FS1R was designed not as an all-in-one workstation for producing entire songs but as a way to add original, complex tones that could not be produced by other synthesis methods.