f1 0 8193 10 1; a sine wave from -1 to 1 for table index
f2 0 8193 19 1 1 0 1; a sine wave from 0 to 1 for table number

i1 0 1
s
t 0 120

i2 0    6    7.00
i2 6    1    7.03
i2 7    1    7.07
i2 8    2    7.11
i2 10  .5    7.08
i2 10  .5    7.11
i2 11   7    8.00

i2 0    6   7.07
i2 6    1   7.11
i2 7    1   8.00
i2 8    2.5 8.03
i2 10.5 7.5 8.07
i2 11   7   8.04

e