The Soprano Sahara is a location on Pirate Paradise, in the bottom center of the island. It has yellow plains filled with cacti and other desert-related items. The desert is split into two sections horizontally, being devided by a stream/river which seems to have gust winds as seen on the map.
Soprano Sahara
Right of the Soprano is Plank Peak which is connected by a wooden bridge. There are flying music notes surrounding this desert, possibly linking it to something musical; the name "Soprano" also supports this as it means "the highest singing voice."