A "raw" segment of the edited song demonstrates how he goes from sound to sound very quickly and deftly. This example was downsampled severely to keep the file size down, so please excuse the resulting noise.
In this sample a Crissal Thrasher imitates the sound of a Mourning Dove's flight! He also does an almost-perfect Curve-billed Thrasher's call notes and Western Bluebirds' flight song.
And here is an example of the song, which is highly variable, and resembles the song of a Crissal Thrasher, but much more structured with less mimicry.
The deserts around central Arizona are perfect habitat for Curve-billed Thrashers (Toxostoma curvirostre). Here is the typical call 1 recorded 1/31/99, 15 miles North of Scottsdale, Arizona.