Some popular piano tuning equipment: From major to base: a tuning lever, a felt mute, a rubber mute, a felt temperament strip (left), and a Papps mute. Common resources for tuning pianos include things like the tuning lever or "hammer", various mutes, in addition to a tuning fork or Digital https://dallasgyoet.pages10.com/the-smart-trick-of-piano-repair-that-no-one-is-discussing-66424475