Leather Cello Mute by Emma Alter

A new sound world emerges when the mute slides on: An Alter mute sounds special, not just quieter.

Alter mutes are used worldwide, in both leading orchestras and period-instrument ensembles.

The three pronged mutes are requested by Orchestra of the Age of Enlightenment as standard for use in their string sections for historical performances while the Modern style mute stays on the instrument.