comparing and tuning two sounds with X.player~ in qwerty sampler problem

Hi all. I'm developing with Max/MSP an educative application for learning harpsichord tuning in different temperaments, but I'm bumping into several problems. I use buffer~and groove~for the sampler that plays real harpsichord sounds and have the keyboard mapped to both qwerty and samples with coll objects. Before creating the sampler I used the X.player~ object (from Eric Singer example's library) to compare two sounds and tune and detune one of them (in midicents), but now that I have to insert the X.player~ object in my sampler patch, I just can't seem to make it work. Do you guys have some ideas? Here is the sampler patch (you can replace the buffers with what you want) and the Non working X.player patch. I'm mostly a performer and teacher and I've been working with Max for some time now, but, I'm really not very good at it...

Sampler patch

player patch abstraction

X.player patch