I hope someone here can help me with a completely novice electronic music question. I'm currently producing some techno music tracks. For research purposes, when I listen to techno albums I hear a bunch of tracks that build and develop in, usually, 8 bar segments and build up over the course of a minute or two into a frenzy and then take off in another direction. However, when I go out to a club I hear DJs playing records that just loop the same bar or two over and over for 5 - 10 minutes with no change whatsoever. The arch of song development is closer to 20-30 minutes, rather than the 1 or 2 minutes on the album cut. My question is this: What do I give a DJ if I want him to play my track... a really long loop that he/she can use while cueing up the next record... or my faster-developing track as it is and let the DJ make the loops happen live and decide the rate of development for the track? Any answers from people who've produced techno music would be greatly appreciated... or DJs are welcome too! Thanks!