FFT list

Hello max peeps,

Sorry if this is a tedious subject but im a noob, so ive seen alot of posts on this but im still confused, maybe im thick or looking in the wrong place, my goal is to get a list of values from the frequency domain e.g. a sample thats 256 long that holds amplitudes for the relevant frequencies, if the spectroscope~ had a list output this would be perfect!

At the moment i have a mic signal going to a fft~ going to a record~ mybuffer (buffer~ mybuffer object is setup), then an uzi connected to peek~ mybuffer, then these to objects are connected to a zi group which pushes a list to a multislider object. Something is happening but the contents of the buffer does not look anything like what im expecting e.g. send a 440 sine wave and theres a single peek within the buffer (or displaying on the multislider object).

Any help would be much appreciated.