Some prevalent piano tuning equipment: From major to base: a tuning lever, a felt mute, a rubber mute, a felt temperament strip (remaining), in addition to a Papps mute. Typical resources for tuning pianos include things like the tuning lever or "hammer", a range of mutes, along with a tuning https://music77777.wssblogs.com/30921745/the-smart-trick-of-piano-tuning-that-nobody-is-discussing