The Tourte Double Bass Mute is a popular mute that stays on the instrument when not in use and is easily slipped onto the bridge when needed. It then sits across the middle two strings, muting the Bridge.
The Tourte Double Bass Mute sits on two strings behind the bridge. It can easily be clipped on and off by using one hand and therefore making it possible to use during rests without a lot of hassle. It creates a slightly quieter and softer sound giving a different timbre.
This mute is the most widely used for concert performances.