I have just made a nice little thing I'd like to share. It is a renoise monobass instrument with glide, that can be tuned microtonal! Yay! I know some ppl here are into microtuning, so it might be interesting for you.
It works by disabling the renoise tuning (constant pitch sample), and tuning the sample with pitch modulation via a key tracker, and a formula device in between with microtuning data! It does glide via the inertia formula device. It is different from the normal gxx glide commands, it will reach pitch in constant time and not with constant speed. It works in mono mode with gxx commands holding the note instead of retriggering. No polyphony, sorry.
My Example is a simple saw bass with some nifty persian tuning from a scala file spread over 2 octaves. Look into the instrument effects, copy/paste the code from the "TUNING" formula device if you would like to try making your own tunings. The device can be tuned with cent values from a base note, or with hz frequencies if you change a variable. There are functions to copy octaves, and gaps in the key map will be auto filled with the last set frequency down the keyboard.
If you wish to use another sample, replace the saw sample only. The gate sample is for disabling gate between notes, so only legato notes will glide, it can be turned on/off with the 2nd macro.
Discussion welcome, feel free to ask anything if you have problems using the thing for your own purposes. I'm not done yet, I'd wish to implement pitch bend that will glide through set frequencies in special ways, feel free to share your ideas on this, I'll try to implement.