Elektron Musical Instruments

> 1. When recording parameter locks, can you do realtime recording so 
> that you can turn a
> knob
> while the pattern plays and record a series of pattern lock values?

Yes; you have to press rec+play to go into real time rec, then you can 
fine tune the locks in the sequencer.

> 2. How well does the Machinedrum work as a sound source when 
> controlled by MIDI
> controllers?
> For example, how much can you control via note velocity?

I think that the MD doesn't react to note velocity at all...
can anyone confirm this?
But it has an "accent" parameter that lets you easily play with 
dynamics.

> 3. Has anyone done a comparison between the Machinedrum and the 
> Waldorf Rack Attack?
>

They are 2 different machines: I think that even the Attack has a good 
sound (not the same), but the Md has a better UI and a good sequencer.
The attack is more like a sound module, the MD can stand on its own.

I believe that programming is easier on the MD than on the Attack.

Also, the MD features a compressor, something that I can't recall being 
on the attack.

If I'd were to buy the attack, I'd choose the plug-in.