Answer to Question 1All the other examples in the chapter have been in major keys where the important chords (I, IV, V) have a major thirda musical interval/distance of two whole steps--between their first and second chord tones1. For example, a major chord built on C is made up of the tones C E G (C to E is a major third). However, in Ain't Enough Comin' In, which is a
minor blues, the important i, iv and v chords of the piece are minor chords built with lowered (flatted) or minor thirdsa musical interval/distance of one and half whole steps--between their first and second tones. Using minor chords gives the music an entirely different quality from songs using the major I, IV, and V chords. For example, a minor chord on C contains the tones C Eb G (C to Eb is a minor third). Play these two chordsC major (C E G) and C minor (C Eb G)on any keyboard and you will immediately recognize them and their distinctly different chord qualities.
1 Assuming the chord is stacked in root position, that is, presented with the chord tones stacked in order from lowest to highest pitch.
two quicker notes/units that are equal in length
In the shuffle beat heard in other examples, the beat is divided into . . .
three quicker notes/units, in which the first two notes/units connect together to create
a long-short (shuffle pattern).
Mutation and selection diagram
Selection of a nursing center
Temperature Means and Ranges
Positive and negative selection during T-cell development.
The two skills of the element Selection of Alternatives
Stabilizing selection eliminates extreme forms of a trait