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| quote: | Originally posted by DigiNut
For electronic music, anything goes as long as it's one of the diatonic scales (standard major or minor). Practically speaking, the vast majority of trance tracks are in simple keys: C+/A-, G+/E-, D+/B-, F+/D-. There's no special reason for this really, other than it takes less effort to compose in those keys.
There's no right or wrong key really, but the key you pick determines the character of your track. A lot of the more unique tracks are in unique keys. The only hitch sometimes is the bassline range - generally I try to keep the fundamental below 250 Hz, so I try to arrange the track so that the bassline can play at least 1 full octave of the scale below that. That's not necessarily a requirement, just my take on it.
The rules are much more complicated when writing orchestral scores, but you probably don't want to get into that. |
You bet they are
Chords are interesting things You can experiment a lot with them.
One way to avoid oversized chords is to merely chop off any notes from the bottom of the chord once you get up to four. I do it all the time. It's a habit I got into from playing the organ 
Take the C range for example:
Cmaj = C E G
Cmin = C Eb G
Csus2 = C D G
C2 = C D E G (Debussy liked chords like these)
Csus2 = C D G
Caug = C E Ab
Caug7 (also written C7+5) = C E Ab Bb
(I conjecture that Caug6 is rare, it sounds better with an A bass note as the A minor major seventh chord)
C6 = C E G A (which is also Amin7 - the sixth chord of any major will be the seventh of its corresponding minor)
Csus7
C7 = C E G Bb
Cmaj7 = C E G B
Cdim = C Eb Gb (aka F#)
Cdim7 = C Eb Gb A (which for the record is also Adim7, Gbdim7 and Ebdim7)
Now pay attention here... this is where the shortening process begins.
C9 = D E G Bb
C11 = D F G Bb (effectively, a Gmin7) (C E G Bb D F is the full chord)
C13 = D E A Bb
C15 (I think) = D F A Bb (the full chord would be this big honkin mess C E G Bb D F A C#)
A full C9add13 is missing an F from a full C13 chord, but it isn't added in the organ chord because it sounds like crap in one big smooshed-in conglomerate like that. Hell, if you got a chord to go high enough, it'd cover all your basic 12 tones... hard on the fingers and the ears...
Plus you can mess around with combinations 
Csus4add2 = C D F G (also a Gsus7)
Csus4-2 = I LOVE this chord. It's a little dissonant, but not quite cacophonous, if used properly... C C# F G
Csus7-5 = C F F# Bb
Csus7+5 = C F Ab Bb
C7-5 C E F# Bb
C7+5 see above
The list goes on... as long as they're used correctly, they'll sound fine.
A C15-C13, C13-9 combo can sound quite beautiful, actually 
I think 11th chords were the most complicated I ever used in trance, though. I may have pulled out a suspended fourth with added flattened second, or two, as well.
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DC76
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