What is a Piano Belly?

What is a Piano Belly?

Piano Belly

The Piano Belly consists of:

  1. A Soundboard
  2. Bridges
  3. The outer rims of the piano
  4. The Pinblock.

The Soundboard, made typically of spruce, acts as an acoustic amplifier. The Bridge works as a transducer, transferring the vibrations of the strings to the soundboard. The rim provides structural integrity, holding all the parts of the piano belly together, in addition to being a major part of the aesthetic cabinetry. The pinblock holds the pins, which act as sophisticated screws where the strings are wound. Turning the pins with a tuning hammer tightens or loosens the strings, which in turn affects the pitch of the string vibrations.

For the best sound production, the soundboard needs to be constantly in a state of tension. To achieve this, the soundboard is designed with a curve supported by ribs underneath. The crown of the soundboard is where the bridges are placed for maximum sound production and amplification.

The pinblock is made of multiple laminations (layers) of hard woods (like quarter-sawn maple) to ensure that the pins are gripped securely with contrasting grain orientations of the wood.

The piano rim is actually composed of outer and inner parts. The outer rim is the visible cabinet, while the inner rim acts like a shelf to hold and support the soundboard and pinblock. The rim is composed of multiple layers of wood laminates which are bent and steam pressured into the shape of the piano.

Recent Post

Meet Kat, Director of the Cunningham Music School

Continue Reading...

Meet Kat, Director of the Cunningham Music School

Kat Bowman is the School Director of the Cunningham Music School and teaches piano, voice, and pipe organ lessons. Kat is a collaborative pianist and vocal specialist who performs and teaches in the greater Philadelphia area. She has been a teacher with

Continue Reading...

Narrow Keys Keyboard at NAMM

Continue Reading...

Narrow Keys Keyboard at NAMM

One of the most interesting things I came across at the 2022 NAMM Show was a Narrow Keys keyboard (https://www.narrowkeys.com/), which allows pianists with smaller hands to be able to play big repertoire that requires a much wider hand span. 

Continue Reading...

Get In Touch

  • This field is for validation purposes and should be left unchanged.