Here is a little theory stuff for those of you interested. Although music "theory" was derived from Bach's music it can be applied to explaining/communicating jsut about any musical ideas.
Here's the basics:
In C major there is 7 notes (C D E F G A B, all the white keys on a piano).
If you are playing in a key of C major (no sharps or flats, ie, all white keys) the chords then are:
C major, D minor, E minor, F major, G major, A minor, and B diminished
All chords (at this point in theory) are built on thirds (every other note).
So the first chord (C major) contains the notes C E and G, and D minor contains D F and A. Their "flavor" (major, minor, etc.) are determined by the intervals they are built in. (This is where it's going to get weird for those of you with little theory experience)
A major chord is built like so: Major 3rd and a minor 3rd stacked on eachother (C to E is a major 3rd, E to G is a minor 3rd)
Minor chord: Minor 3rd, major 3rd
Diminished chord: Minor 3rd, minor 3rd
Augmented: Major 3rd, major 3rd.
A major chord is designated by a capitalized alphabet numeral thing (I, II, III, etc.)
Minor chords are lower-case (i, ii, iii),
Dim chords are lower with a "º" at the end (viiº, iiº, etc.)
And aug chords are designated by a capitalized letter and a "+" (VII+, IV+).
So anyway...further on with the theory stuff.
In any key there is seven chords based on the seven notes in the key's scale.
In a major key they are: I ii iii IV V vi viiº (look at the C major chords for example)
In a minor key they are: i iiº III iv V VI VII
(There are only major and minor keys for those of you who don't know)...
God damn this is confusing me now...
Agh so anyway I totally forgot my point really haha but in Bach's day a basic chord progression would be I IV V I (that's sort of like THE progression)
Also I ii V I was quite popular as well as I vi ii V I...
Anyway you get the idea, hopefully you can figure that out! It doesn't wholly apply to trance (not at this point anyway) but if you experiment you should get the idea.
Of course this is like the first 3 days of a theory class haha there's really much more to it.
If you have questions email me or I'll just check back here.
Later
Hels (that was fuckin long, I hope someone cares!)