@wtw , @Ripton , @JohnG -

You might want to try this!

Gypsy Jazz sounds great on the VIOLA!

Tcha Limberger demonstrates "Pasch Tutte" on Viola.  Tribute To Bamboula Ferret from "Romane Gilia ft. Tcha Limberger Vol.1".   

Romane Gilia in Sinti Romani means Gypsy songs.  Romani is the language of the Gypsies.  The dialect in these songs is the dialect spoken by the Sinti, also known as Manouche. 

The Sinti mainly live in western Europe in countries such as Germany, France, Holland, Belgium, northern Italy. 

The legendary jazz guitarist Django Reinhardt was a Sinto.  At the height of his popularity, and following his death, he inspired many within his community to pursue a similar musical path. 

These Sinti then gave birth to what is now called Gypsy Jazz or Jazz Manouche; a broad and even ambiguous term to describe what has become somewhat of a folkloric style.