This pattern is from the book Crochet in Color which is available as an eBook.

This blanket is the greedy result of seeing a wall full of warm reds, pinks, oranges, and yellows in soft Malabrigo yarn and listening to Astor Piazzola play a tango. It is made in three panels sewn together with borders sewn around the panels. The strong color contrasts give the blanket lots of movement, something like that tango.