This module is made to generate CVs which are accurate enough to keep pitch/transposes etc. completely in tune. This could be for 1V/Octave synthesisers, (doesn't have to be the AE modular). This accuracy applies to Oscillators and Sequence modules so could be useful for many purposes.
If the transposition buttons are not necessary and you could use two precision adders, take a look at the 2CVADD-HQ module
The most obvious use is before VCOs to combine CVs to control pitch. Having 2 outputs each circuit could control 2 oscillators without any help. The inverting input (4) can be really useful here.
The same applies for controlling filter cutoff frequency.
This module can be used as a CV mixer anyway, regardless of destination, again Input 4 can be really handy.
This manual is a community work in progress. If you would like to help out with completing this manual please send a PM to @admin at the AE Modular Forum. The status of each page can be seen on the Trello board at https://trello.com/b/HNd0dBt7/ae-manuals