Elektron Musical Instruments

"Also consider: the speakers you're using as monitors
 influence heavily the outcome of your post production.
 It's not a bad idea perhaps to find a track with the
 sound that you want and start doing your master
 effects comparing to that while listening through the
 same speakers."

I have a question for this.  Your final results should represent the
system you are making your track for.  For example, headphones, car
audio, home theatre, or club sound systems.  Is this not the reason
there are radio edits and club mixes?  I have s#I+ computer speakers
for monitors.  But I use my decent headphones when I mix.  So I guess
I'm making headphone music.  Until I buy good monitors of course.

To reiterate what you last said about compression.  You could compress
individually, but it's more effective to compress the whole track. 
This sets the output levels when your track is played back on a sound
system.  Right?