The Heifetz Mute for Violin or Viola
The unique design of the Heifetz mute allows the player to adjust the muting effect by sliding the metal tension clip down or up, muting more or less as a result. The metal tension clip is the part that is stamped "HEIFETZ". Made of the highest quality materials, many professionals swear by this unique mute. The original Heifetz mute was very similar, but with a slightly different design.
What Should I Look For in a Mute?
All string players should have at least one mute, and there are three important factors to consider. First and foremost, ease of use. How quickly can the mute be put in place or removed? How important is this to you? Orchestral players sometimes only have one measure to install or remove a mute. Secondly, sound quality. The goal of the mute is to lower the volume only, not dampen the good quality of your instrument. Regarding overall sound quality, the degree to which a mute "rattles" when not in use but still on the strings between the bridge and tailpiece is important as well. Third is aesthetics. Truth be told, many players consider the importance of overall look and feel, trying a variety of mutes to find out what works and looks best on their instrument. Fortunately, mutes are not too expensive, so this is a relatively low cost endeavor.