### device:

Piano
* Some pianos are in environments where there is frequent change in temperature and humidity
  - very unstable, especially pianos with new strings
  - go up and down in pitch together and stay relatively in tune
  - have a bright treble.
  * A normal piano has 88 keys. Pianos use the keys to move hammers that hit strings inside, making a sound. The piano has been an extremely popular instrument in Western classical music since the late 18th century. A person who plays the piano is called a pianist
* are among the most durable of personal possessions
  - films
  - furniture
  - instruments
* are located in churchs
  - concert halls
  - concerts
* are located in music schools
  - stores
  - old movies
  - orchestras
  - restaurants
  - symphonies
  - machine-manufactured entirely, or partly handmade
  - machines
  - mostly wood and are greatly affected by seasonal change
  - percussion instruments
  - solids
  - stringed instruments
* are used for decoration
  - entertainment
  - playing
  - teaching
  - to help teach music theory, music history and music appreciation classes
  - what separate the adults from the cubs
* do fall from the sky, and banks do have their security breached.
* have a wooden bridge which is attached to the soundboard and has the strings running over it
  - keyboards
* includes bases
  - fulcrums
* includes piano actions
  - sound holes
* is just as important as sports
  - where the musical ideas are born
  - more a female instrument
  - the most common keyboard instrument
* often have numbers other than serial numbers.
* playable piano, tuner and metronome.
* revolutionary concept in piano instruction.
* vary in tone, size, durability, and price.

### device | piano:

Digital piano
* are easy to move and take up less space than conventional pianos.
* concentrate on piano sounds with few other sounds.
* focus primarily on piano sounds with a limited number of other sounds.
* use digital sampling technology to reproduce the sound of each piano note.

Grand piano
* are pianos
  - said to produce finer tones and has the most responsive key action
* come in many different makes, types and sizes.

Piano tuning
* are tuning.
* is an art as well as an acquired skill.
* skill that can be practiced in any city one chooses.

Player piano
* are books.
* use a roll of paper with holes in the paper to tell it when to play certain notes
  - pure on-off digital logic to store sound

Upright
- structural members
* grow much taller than they are wide.
* have a joint in each action that comes apart when the glue fails.

Upright piano
* are generally less expensive than grand pianos.
* vary in size.

### device:

Pillar
* are legs because both are supports, but they can just as well rise above the 'belly'
  - principles
  - rock formations
  - stones
  - supporters of roofs and walls
  - the result of stalactites and stalagmites joining together
* somewhat archaic word synonymous with post.
+ Finnish paganism: Finnish mythology :: Paganism
  * Picture of how Finnish people saw the world. At the top is nail, that is North star. North star holds sky dome and its supporting pillar together. Pillar stands at a disc that is surface of earth. Below the disc is the land of dead.
+ Interstellar medium: Stars :: Astrophysics
  * Pillars made of dense cold gas are visible.

### device | pillar:

Stilt
* are birds
  - poles
  - shorebirds
  - supports used to separate a glazed article from a shelf during firing
  - used by the shepherds of the marshy Landes in southwestern France
* take strong flapping flights with trailing legs.
* use a variety of aquatic habitats.

Pin
* is both rhodium plated and goldtone
  - enameled goldtone and water vessels are venetian glass beads
  - fired, polished and gold or silver plated
  - gold-tone metal
  - goldtone metal with enameling
* mixture of gold and silver.