yourwhathurts69 -> RE: Music theory is way too complicated (Nov. 15 2010 23:25:44)
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hey, regeliocan it's taking me too long to write out a detailed explanations, so your just gonna have to trust that the system is actually very good and very descriptive - you just need to learn the rules. the only flaw is that there is no one way to write each chord. for example, your Am7b5 (half diminished) can be written as the following: Am7b5, Am7(b5), Ami7b5, Ami7(b5), Amin7b5, Amin7(b5), A-7b5, A-7(b5), Aø7 did I miss any? if you look at them, they all are pretty similar, so it's not too hard to figure out chords as long as you know the rules. so what are the rules?? in general, assume the 7th is a flat seventh (in the key of C, an interval of C to Bb). after the letter name of the chord, if you see: M, Maj, or Δ in front of the 7, it makes the 7th a major 7th interval regardless of what type of triad (C E G B). nothing in front of the 7th, then it is still a flat 7th interval (ie C7 would have a 7th interval of C to Bb, so it is C E G Bb) m, min, or - in front of the 7th, the triad is minor (ie C Eb G) and the 7th is still a flat 7th interval (so, cm7 has C Eb G Bb) ø in front of the 7th, or b5 after the 7th, it is based on a diminished triad (C Eb Gb), and the 7th is still a flat 7th interval (so C7b5 has C Eb Gb Bb) dim or ο in front of the 7th, it is based on a diminished triad (C Eb Gb), and because it is "fully diminished" it also has a diminished 7th interval meaning that you must flat the 7th again (ie Bb goes to Bbb, so Cdim7 is C Eb Gb Bbb) Bbb sounds like A, but it is important to distinguish Bbb from A because although the pitch sounds the same, the notes are different. as you get more into the theory you'll see why this is important. also notice that in the fully diminished 7th chord, there is a minor 3rd interval between each note in the chord. (C to Eb, Eb to Gb, Gb to Bbb) and finally if you see Aug or + in front of the 7th, it is an augmented triad with the flat 7th interval (so, Caug7 is C E G# Bb) there are a few other 7th chords that i didn't put here, but i think this is enough to process. oh, and whether or not theory is important, trust me, it is. if you don't believe me, try to find 5 different ways to play the same chord on your guitar. give up?? now try thinking about what notes are in each chord you're trying to play. better? i thought so.
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