I don't like the verbiage "in minor scales the minor intervals are introduced" because for one thing it creates the false impression that minor scales are minor because they have minor intervals. THis is not the case, minor scales are minor because they have a minor third. Moreover, the major scale has within itself a number of minor intervals, just not between the tonic and any other note. I like the pictures though, so I'm a bit loathe to go changing anything.JFQ
The minor scale introduces minor intervals from the tonic, maybe? I've never understood why it's a minor second and not a diminished second -- after all, it doesn't occur in the minor scale. -- Tarquin
It's because only flatted perfect intervals (and occasionally the flatted minor seventh) are called diminished. Major intervals invert to minor intervals, diminished intervals invert to augmented intervals, and perfect intervals invert to perfect intervals.
And there's a minor second between the second and the third in a natural minor scale.
And it's minor because it's got that dark, um, minor quality. yeah. Oy, this stuff is so subjective. JFQ
The "concordant and discordant intervals" bit should be moved to a separate article that deals with the subjects or consonance and dissonance at a more general musical level (bring in chords, talk about the history of dissonance, etc.).
We don't have any articles on consonance or dissonance, and I'm not sure what to call a page like that. It seems silly to make an article called "dissonance", becuase that implies that there should be a similar "consonance" article. Getting redirected to the exact opposite thing would be confusing. -- Merphant