Music Theory: From Absolute Beginner to Expert · 5th edition
Example 6.13
A plain bar, then the backbeat
0:000:00
What you hear
A bar of the pulse alone, then two bars of four even quarter notes, then two bars with beats 2 and 4 louder (C5), 72 BPM over a soft pulse on C3
In the book: Figure 6.18.