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physics

Player piano

Player piano is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Player piano rather than just read about it. In short: A player piano is a self-playing piano with a pneumatic or electromechanical mechanism that operates the piano action using perforated paper or metallic rolls. Modern versions use MIDI.

Player piano — main illustration
Player piano — illustration

Key takeaways

  • Player piano belongs to physics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Player piano to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Player piano from memory before moving on to harder problems.

Reference excerpt

A player piano is a self-playing piano with a pneumatic or electromechanical mechanism that operates the piano action using perforated paper or metallic rolls. Modern versions use MIDI. The player piano gained popularity as mass-produced home pianos increased in the late 19th and early 20th centuries. Sales peaked in 1924 and subsequently declined with improvements in electrical phonograph recordings in the mid-1920s. The advent of electrical amplification in home music reproduction, brought by radios, contributed to a decline in popularity, and the stock market crash of 1929 virtually wiped out production.

History The first practical pneumatic piano player, manufactured by the Aeolian Company and called the "Pianola", was invented in 1896 by Edwin S. Votey, and came into widespread use in the 20th century. The name "pianola", sometimes used as a generic name for any player piano, came from this invention. The mechanism of this player piano was all-pneumatic: foot-operated bellows provided a vacuum to operate a pneumatic motor and drive the take-up spool, while each small inrush of air through a hole in the paper roll was amplified in two stages to sufficient strength to strike a note.

1900–1910

Votey advertised the Pianola widely, making unprecedented use of full-page color advertisements. It was sold initially for $250, and then other, cheaper makes were launched. A standard 65-note format evolved, with 11+1⁄4-inch-wide (290 mm) rolls and holes spaced 6 to the inch, although several player manufacturers used their own form of roll incompatible with other makes. By 1903, the Aeolian Company had more than 9,000 roll titles in their catalog, adding 200 titles per month. Many companies' catalogs ran to thousands of rolls, mainly consisting of light, religious, or classical music. Ragtime music also featured. Melville Clark introduced two important features to the player piano: the full-scale roll which could play every note on the piano keyboard, and the internal player as standard. By the end of the decade, the piano player device and the 65-note format became obsolete. This caused problems for many small manufacturers, who had already invested in 65-note player operations, ultimately resulting in rapid consolidation in the industry. A new, full-scale roll format, playing all 88 notes, was agreed at an industry conference in Buffalo, New York in 1908 at the so-called Buffalo Convention. This kept the 111⁄4-inch roll, but now had smaller holes spaced at 9 to the inch. This meant that any player piano could now play any make of roll. This consensus was crucial for avoiding a costly format war, which plagued almost every other form of entertainment medium that followed roll music. While the player piano matured in America, an inventor in Germany, Edwin Welte, was working on a player which would reproduce all aspects of a performance automatically, so that the machine would play back a recorded performance exactly as if the original pianist were sitting at the piano keyboard. Known as a Reproducing Piano, this device, the Welte-Mignon, was launched in 1904. It created new marketing opportunities, as manufacturers could now get the foremost pianists and composers of the day to record their performances on a piano roll. This allowed owners of player pianos to experience a professional performance in their own homes on their own instruments, exactly as the original pianist had played it. Aeolian introduced Metrostyle in 1901 and the Themodist in 1904, the Themodist being an invention which was said to bring out the melody clearly above the accompaniment. Sales grew rapidly, and with the instruments now relatively mature, in this decade a wider variety of rolls became available. Two major advances were the introduction of the hand-played roll, both classical and popular, and the word roll.

Hand-played rolls introduced musical phrasing into the rolls, so that player pianists did not have to introduce it through the use of tempo controls or expression levers/buttons, which few felt inclined to do. Word rolls featured printed lyrics in the margins, making it simple to use players to accompany singing in the home, a popular activity before radio and disc recordings became widely available. The other major advance was the arrival in America of two commercial rivals for the Welte-Mignon Reproducing Piano: the Ampico (from 1911 but fully 're-enacting' by 1916) and the Duo-Art (1914). Artrio-Angelus also introduced a reproducing player from 1916. When World War I came in 1914, German patents were seized in the US. In England, Aeolian had a huge factory and sales network and easily outsold the Ampico. Other makers of Reproducing systems, Hupfeld Meisterspiel DEA (1907) and Philipps Duca (c 1909), were successful in Europe. Hupfeld perfected an 88 note reproducing system, the Triphonola, in 1919, and around 5% of players sold were Reproducing Pianos. In America by the end of the decade, the new 'jazz age' and the rise of the fox-trot confirmed the player piano as the instrument of popular music, with classical music increasingly relegated to the reproducing piano. Most American roll companies stopped offering large classical catalogs before 1920, and abandoned 'instrumental' rolls (those without words) within a few years. In England, the Aeolian Company continued to sell classical material, and customers remained willing to contribute to performances by following directions printed on the rolls and operate the hand and foot controls themselves. Sydney Grew, in his manual The Art of the Piano Player, published in London in 1922, said that "it takes about three years to make a good player-pianist of a man or woman of average musical intelligence. It takes about seven years to make a good pianist, or organist, or singer". Word rolls never became popular in England, as they cost 20% more than non-word rolls. As a result, post-World War I American and British roll collections looked very different.

1950–present

… excerpt ends here. Continue reading the full article.

Illustrations

Player piano: A restored pneumatic player piano
A restored pneumatic player piano
Player piano: The mechanism of a player piano.
 Pedal.
 Pedal connection.
 Exhauster (one only shown).
 Reservoir; high tension (low-tension reservoir not shown.)
 Exhaust trunk.
 Exhaust tube to motor.
 Air space above primary valves.
 Secondary valves.
 Striker pneumatic.
 Connection from pneumatic to action of piano.
 Piano action.
 Pneumatic motor (Air Motor).
 Trackerbar (music roll passes over trackerbar).
The mechanism of a player piano. Pedal. Pedal connection. Exhauster (one only shown). Reservoir; high tension (low-tension reservoir not shown.) Exhaust trunk. Exhaust tube to motor. Air space above primary valves. Secondary valves. Striker pneumatic. Connection from pneumatic to action of piano. Piano action. Pneumatic motor (Air Motor). Trackerbar (music roll passes over trackerbar).
Player piano: A player piano performing
A player piano performing
Player piano: Steinway Welte-Mignon reproducing piano (1919)
Steinway Welte-Mignon reproducing piano (1919)
Player piano: A player piano roll being played
A player piano roll being played

Worked examples

Example 1 — a first encounter with Player piano

Start with the simplest possible case. Write down what Player piano claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Player piano before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Player piano ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Player piano

In research
Player piano appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Player piano in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Player piano is common in secondary-school and first-year university syllabi. It links to neighbouring topics Mechanical musical instruments, Piano, Pneumatics, so understanding it makes those chapters shorter.
In everyday life
Look for Player piano outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Player piano in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Player piano means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Player piano out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Player piano in simple terms?

A player piano is a self-playing piano with a pneumatic or electromechanical mechanism that operates the piano action using perforated paper or metallic rolls. Modern versions use MIDI.

Why does Player piano matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Player piano?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Player piano.

Tags

  • Mechanical musical instruments
  • Piano
  • Pneumatics

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