I'm learning about intervals and triads around the neck. I'm practicing playing triads right now, and playing the intervals that ''enclose'' each triad's root. Like I'll play a minor triad and find the flat seventh and second next to the root, the fourth and second next to the flat third, etc.
I'm practicing playing triads along with this song (''Hold on Magnolia'' if it matters.) The song is in the key of E. The chord progression goes I vi iii V IV I IV. Ill play the I chord, then mess around with that chord's root's second and fourth and stuff. Then I'll play the vi chord and do the same. Then I'll play the iii chord, and I'll mess around, but then I hit that chord's root's second, it sounds really weird. I can't make it sound good along with the song. It's an A#, which I know isn't in the key of E, but it is in the key of G# minor, and its G#m's second. Why does the G#m's major second not work over a song in the key of E, even though G#m is in the key of E?
I thought that was what playing with the changes was-- playing the corresponding scale for each chord, because even though some notes might not be in the song's key they'll sound good with the chord and it causes tension and tasty stuff. But this A# never sounds good. Why not? Only playing the A along with the G#m sounds good. Apparently I've really misunderstood what ''playing with the changes'' means. People say that to really advance, you should learn to do more than just play the key's scale over the whole song. So how do I really know which notes are good and bad?
Thanks a lot guys. I didn't really know how to ask this question so I gave a lot of information so that i hope yall can find what im confused about.