I want 24diferent loops to be constantly playing.
Is loading them in to arrays and having 24 tabplay the best way or is there a simpler more convenient way?

Also not sure how to get them to constantly loop. Do i have to send new bangs every time they stop?

I'm trying to get pitch from a piano with fiddle to control a synth (kind of).
First try/test is the attached file. Problem is it only works for high keys. I think this is due to lower amplitude in lower keys. Input comes from a cheap casio keyboard via a cheap microphone and is not very strong. What is the best way to amplify this signal within PD?

http://www.pdpatchrepo.info/hurleur/fiddlepiano1.pd

I can only find 0.39 extended, are there no newer version?
I guess I could get the ordinary 0.41 and then install the extensions I need, but I'm not shure how to do this or wich extensions I need.

I want to controll the speed of a metronome with midi sync, how should i do?
I have searched the forums and googled but can't find a good answer how to do this and the documentation for midi in messages is kinda sparse.

Also since its my first message i guess i should say hi:
Hi everyone!

If I understand it correctly the lights are controlled with midi notes. The noteout object is the one you are looking for i believe.
Try the attached patch, hitting the bang should (if i'm correct) turn the first button green.

http://www.pdpatchrepo.info/hurleur/apc40test.pd

Found this link in the CDM article you linked: http://www.cycling74.com/forums/index.php?t=msg&rid=0&S=fc3491c80ebcd0e6aa4198cfe00d9036&th=39824&goto=174687#msg_174687
it might be what your looking for.

I don't think there is a stable release for ubuntu 64bit just yet. But there is a new release candidate for the next version.
http://puredata.hurleur.com/sujet-4340-extended-release-candidate-released

I'm having trouble installing on Ubuntu 9.10 (karmic). Are a package forthcoming or should I continue my attempts at making it myself? I'm a noob so it's not going very well so far.

where did the original thread go? there were more interesting solutions for 4 channel sound

They are probably extended objects, if you're running vanilla.