Octamed on the Amiga has a feature that assists one to create perfect slides/glides from note to note using effect commands(1xx,2xx or 3xx/5xx in Renoise).
One could simply select a few notes and let the program calculate the correct speed for noteslide command or 1xx / 2xx.
For example lets say i wanted to create a pitch slide from C-3 to C4 between rows 0-16.
In Octamed i could simply enter C-3 on row 0 and C-4 on row 16 select rows 0-16 and then chosse pitch slide(either using 1xx/2xx or 3xx), when using 1xx the program entered aproriate 1xx on all rows untill row 16 & targetnote was reached.
Or in the case of using 3xx the program would move the target note to the next row(row 1 of sourcenote was set on row 0) and calculate the slide speed and enter 3xx untill line 16 was reached.
I have looked around in the advanced edit and it’s interpolation features but none seem to work well with pitch related commands, they work fine for volume and panning, maybe i’m blind?