In the 18th century, makers developed interchangeable crooks of different-lengths, which let players use a single instrument in more than one key.

The standard concert flute is pitched in the key of C and has a range of three octaves starting from middle C ( or one half-step lower, when a B foot is attached to the instrument ).

** Electronic keyboard, a keyboard instrument in which key presses complete an electric circuit

Depressing a key on the keyboard causes the instrument to produce sounds, either by mechanically striking a string or tine ( piano, electric piano, clavichord ); plucking a string ( harpsichord ); causing air to flow through a pipe ( organ ); or strike a bell ( carillon ).

The musical terms " piano " and " forte " mean " quiet " and " loud ," and in this context refers to the variations in volume of sound the instrument produces in response to a pianist's touch on the keys: the greater a key press's velocity, the greater the force of the hammer hitting the string ( s ), and the louder the note produced.

This instrument became a key part of the Beatles ' sound on their LP A Hard Day's Night and other Beatles songs through late 1964.

She is an acknowledged expert at operating the universal translator, which was a key instrument in allowing cultures from different worlds to communicate.

A key notion in the work of the Frankfurt School since Dialectic of Enlightenment had been the idea of thought becoming an instrument of domination that subsumes all objects under the control of the ( dominant ) subject, especially through the notion of identity, i. e. of identifying as real in nature and society only that which harmonized or fit with dominant concepts, and regarding as unreal or non-existent everything that did not.

Most modern sousaphones are made in the key of BB ♭ ( Low B Flat ) and like tubas ( which are commonly made in pitches of BB ♭, CC, EE ♭, and F ) the instrument's part is written in " concert pitch ", not transposed by key for a specific instrument.

In telecommunication, an automatic redial is a service feature that allows the user to dial, by depressing a single key or a few keys, the most recent telephone number dialed at that instrument.

Note that this method of determining the key of the instrument is different from the method used to determine the key of a chromatic instrument, which is based on the relationship between notes on a score and sounded pitch.

Although the whistle is essentially a diatonic instrument, it is possible to get notes outside the principal major key of the whistle, either by half-holing ( partially covering the highest open finger hole ) or by cross-fingering ( covering some holes while leaving some higher ones open ).

; Scales: While, as mentioned under Fingering, a player will usually play a given instrument only in its tonic key and possibly in the key beginning on the fourth ( e. g. G on a D whistle ), nearly any key is possible, becoming progressively more difficult to keep in tune as the player moves away from the whistle's tonic, according to the circle of fifths.

Chubais, who was not just Yeltsin's campaign manager but also the architect of Russia's privatization program, set out to use his control of the privatization program as the key instrument of Yeltsin's reelection campaign.

As a result, all horn music was written as if for a fundamental pitch of C, but the crooks could make a single instrument a transposing instrument into almost any key.

Although Wakeman is a noted player of the grand piano, electric piano, Hammond organ, Minimoog and many later models of synthesiser, he is well known as a proponent ( for a time ) of the Mellotron – an analogue electronic musical instrument that uses a bank of pre-recorded magnetic tape strips, each of which is activated by a separate key on its keyboard and lasts approximately 8 seconds.

Gramsci modified classical Marxism in seeing culture as a key instrument of political and social control.

However, it was only after three key inventions were in place that the fountain pen became a widely popular writing instrument.

The symposium provides an opportunity to confront the self with specific statements which were made at particular times by identifiable communicators who were addressing definite audiences -- and throughout several hundred pages everyone is talking about the same key symbol of identification.

The starch source in a beer provides the fermentable material and is a key determinant of the strength and flavour of the beer.

Berkeley DB ( BDB ) is a software library that provides a high-performance embedded database for key / value data.

In fact, this very story, along with some hints from " The Shadow over Innsmouth ", provides the key to the origin of the ' Derleth Mythos '.

For example, Triple DES has a key size of 168 bits but provides at most 112 bits of security, since an attack of complexity 2 < sup > 112 </ sup > is known.

John Tomlinson provides a critique of cultural imperialism theory that relies on some of the key points.

It provides one key for each finger and three for the thumb.

Although Diffie – Hellman key agreement itself is an anonymous ( non-authenticated ) key-agreement protocol, it provides the basis for a variety of authenticated protocols, and is used to provide perfect forward secrecy in Transport Layer Security's ephemeral modes ( referred to as EDH or DHE depending on the cipher suite ).

In particular, NATO's document details requirements for the Theatre Management System ( TMS ), the governing software for digital cinema systems within a theatre complex, and provides direction for the development of security key management systems.

While the first is far shorter than the second, it sets out the basic themes and provides an interpretive key for understanding the entire book.

For example, one might assume the same security that HMAC provides could be achieved with MAC = H ( key ∥ message ).

On October 30, 1992, Moldova ratified the Treaty on Conventional Armed Forces in Europe, which establishes comprehensive limits on key categories of conventional military equipment and provides for the destruction of weapons in excess of those limits.

The problem with this system, is that it provides only a crude binary on / off signal for each key.

An almost literal use of the phrase appears in popular fiction within H. G. Wells ' 1933 novel The Shape of Things to Come, where the protagonist finds a manuscript written in shorthand that provides a key to understanding additional scattered material that is sketched out in both longhand and on typewriter.

This provides a continuous ability to have human oversight on business-critical processes 24 hours per day, without paying overtime compensation or disrupting a key human resource, sleep patterns.

An example of a simple key scheme, which provides a second level of protection, is to write the unmodified or modified password in the top or bottom of the message ; or the distribution of the password sign on the entire length of the steganographic channel.

* The SSHFP DNS record ( RFC 4255 ) provides the public host key fingerprints in order to aid in verifying the authenticity of the host.

The key passage of the Statute of Westminster provides that:

SSH provides much of the functionality of telnet, with the addition of strong encryption to prevent sensitive data such as passwords from being intercepted, and public key authentication, to ensure that the remote computer is actually who it claims to be.

The Global Health Observatory ( GHO ) has been the WHO's main portal which provides access to data and analyses for key health themes by monitoring health situations around the globe.

The Wiccan Rede () is a statement that provides the key moral system in the Neopagan religion of Wicca and other related Witchcraft-based faiths.

Wheat was a key factor enabling the emergence of city-based societies at the start of civilization because it was one of the first crops that could be easily cultivated on a large scale, and had the additional advantage of yielding a harvest that provides long-term storage of food.

For Mac OS X, the Mac GPG project provides a number of Aqua front-ends for OS integration of encryption and key management as well as GnuPG installations via Installer packages.

In a capability-based model, holding an unforgettable reference or capability to an object provides access to the object ( roughly analogous to how possession of your house key grants you access to your house ); access is conveyed to another party by transmitting such a capability over a secure channel.

* LCMS provides automation for the detailed accounting required for every COMSEC account, and electronic key generation and distribution capability.