Some common piano tuning instruments: From leading to bottom: a tuning lever, a felt mute, a rubber mute, a felt temperament strip (left), plus a Papps mute. Frequent equipment for tuning pianos contain the tuning lever or "hammer", a number of mutes, and a tuning fork or Digital tuning product.[fifteen] https://rylancqcue.ttblogs.com/10457387/top-piano-repair-secrets