Assigning midi?

Yes, this is one of the most frequently asked questions here. A search will turn up a metric boatload of responses to this.

Here's some threads:
http://discussions.apple.com/thread.jspa?messageID=6262999
http://discussions.apple.com/thread.jspa?messageID=3093196
http://discussions.apple.com/thread.jspa?messageID=3544096
http://discussions.apple.com/thread.jspa?messageID=5100050

If you are using the multiplayer record feature (the simplest way) just record as normal - all record-enabled tracks will record.

If you cabled up some solution in the environment to bypass the sequencer thru object so the MIDI data doesn't pass into the sequencer, then you won't be able to record.

Which way have you done it?

I connected the midi inputs to 3 different instruments in environment. Actually not even one input goes to the sequencer.It seemed the most easy way to do it except the "no record" part.

Well, that's why you can't record - because you've bypassed the sequencer - the notes come in, and your environment routing sends the notes directly to the instruments, rather than through the seqeuncer/arrange page, hence why you can't record them.

I really recommend the multiplayer record feature for this task as the easiest way to set it up, and the most flexible without requiring workarounds for recording. The environment cabling method you use is a good method, but the main gotcha with it is you're bypassing the sequencer, so to record, you got to again cable the notes to the sequencer, record to a no output instrument and then reassign the regions after recording, which is a bit of a pain.

Multiplayer record avoids all these problems.

No, I said the best way to do this is to not use the technique you are using, but to use the multiplayer record feature.

You can use your existing config to record into the sequencer by also making sure your notes to the sequencer input object, but you have to make sure no instruments are selected on the current arrange track, otherwise you get get doubled notes and potential MIDI loops. And once your notes are recorded, in order to hear them played back, you have to repeatedly move the recorded regions to the desired tracks each time, which is a real pain if you are doing lots of recording.

As already said, multiplayer record gives you a much more flexible and convenient way to do this which avoids all of the negatives (and others not mentioned) of the above method.

Message was edited by: Bee Jay

Under your help menu in Logic you have the PDF manual. Open that, and type "multiplayer" in the search field. The manual fully documents the feature...

The only thing you need to do is make sure each of your transmitting keyboards are sending on a different MIDI channel. That done, you can easily assign which arrange track (and therefore which instrument) will respond to each MIDI channel (and therefore which transmitting keyboard.)