ion". The waveform is set using
     effect [14][4]. By placing vibrato effects on consecutive
     divisions, the vibrato effect can be maintained. If either x or y
     are 0, then the old vibrato values will be used.

[5]: Continue 'Slide to note', but also do Volume slide
     Where [5][x][y] means "either slide the volume up x*(ticks - 1) or
     slide the volume down y*(ticks - 1), at the same time as continuing
     the last 'Slide to note'". It is illegal for both x and y to be
     non-zero. You ca