I had a but of trouble with the 101 seq as well, i think A3 expects a gate instead of an analog voltage. Also if you attach an led to the digital pins 3 and 4 you can see whethee you are recording or not. But it never really worked that great for me. Next thing I wanna do is combine some of the sketches and make a multi purpose one tailored to the ones I use most and integrate it with the base nanosynth midi cv/osc code. Not too ambitious. Pretty sure you can change the speed of the LFO in code to bring its range up but it locks up the arduino if it gets too fast so warch your back.