Music Theory: From Absolute Beginner to Expert · 5th edition
Example 6.8
Two to a beat, then three, then two again
0:000:00
What you hear
A bar of the pulse alone, then two bars of eighth notes, two of eighth-note triplets and two of eighth notes (C5), 60 BPM over a soft pulse on C3
In the book: Figure 6.13.