this was actually somthing i meant to ask about. this stability thing.
so far i understand there are stable and unstable intervals. i assume majour thirds and perfect fiths are stable intervals and obviosly diminished arent. do you mind giving me a list of the intervals that are stable and those that arent.
these stable and unstable intervals in a chord make the chord stable or unstable. if a chord is unstable it wants to reolve to a stable chord.
(is this right)
now want i am a bit unsure about is why choose Aminor as the stable chord to resolve to, for instance why not resolve to any other minor chord.eg bminor. now is it because the notes Gsharp is a semitone away from A and D is a tone away from C, kinda like it is the closest possible inteval that is stable. or is i to do with the fact that the interval of a perect fourth is very strong interval, so therfore the root E will go nicely to A, so the chord might as well be built arround this chord. or do both apply.
lastly can we use the fact that the root note likes to take intervalls of fourths (as well as fiths and 2nds, correct me if i am wrong), to find stable chord progresions like 1 4 5 progression, (intervall of a fourth [1 to 4] then a second [4 to 5] then either down by a fith or up by a fourth [5 to 1], although i guess this is kinda the same). is method valid, could you like say a 1 2 5 progression would seem to fit because there is a interval of a second [1 to 2], an intervall aof a fourth [2 to 5] and then an intervall of a fourth or fith [5 to 1]. will this method work or at least provide a basic guide, or is it completely rubish.