Here are some examples of delay (also know as echo). By delay, I mean an actual "repeat" of the original signal that has been delayed by a certain amount of time. That amount is usually measured in subdivisions of seconds called "milliseconds" (ms). 1000 ms = 1 second. So you will have a frame of reference, here is a sound clip with the guitar "dry" (that is, without any effect). You may want to come back and listen to again after hearing some of the others to get you barrings. (dry) Here's a 50 ms delay--it might be a bit hard to hear at first but I find that if I "tune-in" to the ends of the notes being played I can focus on the delay best. Get 'them headphones on and go back and listen to the dry version. The delay version should give you a a bigger feel of "space". Here it now? If you don't, don't worry. With practice you can. (50 ms) Now here's 100ms & 170ms. You should have no problem hearing the delay on these. Again, feel free to go back and compare them to the dry version. (100 ms) (170 ms) Delay (or echo) was one of the first effects heard on pop records--back in the '50s (before the digital effects box appeared) it was done with a 3 head tape machine. With a 3-head machine you can monitor the playback head *while* you're recording. If you have the original signal on one fader of your mixing board and put the tape machine's playback output on another you will hear a delay. Delay done with a tape machine has a certain sound; in so much as the delay is almost always a certain fixed length--in fact, the lengths 50ms, 100ms & 200ms roughly correspond to the tape speeds of 30 ips, 15 ips & 7.5 ips. How 'bout that?