![A close view of the mechanic of an upright piano, with tuning hitch pins, hammer heads, the vibrating strings and the soft mute (sordino) felt cloth Stock Photo - Alamy A close view of the mechanic of an upright piano, with tuning hitch pins, hammer heads, the vibrating strings and the soft mute (sordino) felt cloth Stock Photo - Alamy](https://c8.alamy.com/comp/RA22AR/a-close-view-of-the-mechanic-of-an-upright-piano-with-tuning-hitch-pins-hammer-heads-the-vibrating-strings-and-the-soft-mute-sordino-felt-cloth-RA22AR.jpg)
A close view of the mechanic of an upright piano, with tuning hitch pins, hammer heads, the vibrating strings and the soft mute (sordino) felt cloth Stock Photo - Alamy
![Amazon.com: Piano Tuning Mute Kit Wool Felt Mutes Temperament strip Rubber Mutes Set, Piano Caster Cups Upright Piano Caster Cups Wood coasters Cups : Musical Instruments Amazon.com: Piano Tuning Mute Kit Wool Felt Mutes Temperament strip Rubber Mutes Set, Piano Caster Cups Upright Piano Caster Cups Wood coasters Cups : Musical Instruments](https://m.media-amazon.com/images/I/81EY-uQLDML._AC_UF350,350_QL80_.jpg)
Amazon.com: Piano Tuning Mute Kit Wool Felt Mutes Temperament strip Rubber Mutes Set, Piano Caster Cups Upright Piano Caster Cups Wood coasters Cups : Musical Instruments
Nord Piano Library: Introducing the new Felt Upright! | We are happy to release our brand new Felt Upright - a medium sized upright piano fitted with felt between the hammers and
![Amazon.com: Vaguelly Foam PCS Upright Piano Dampers Piano Sound slicer Piano sound deadening foam Vertical Piano Supplies Piano Maintenance Accessories wooden wool felt Tool : Musical Instruments Amazon.com: Vaguelly Foam PCS Upright Piano Dampers Piano Sound slicer Piano sound deadening foam Vertical Piano Supplies Piano Maintenance Accessories wooden wool felt Tool : Musical Instruments](https://m.media-amazon.com/images/I/718foqfnzLL._AC_UF350,350_QL80_.jpg)