OTHER MUSICAL INSTRUMENTS

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PIANO:

The piano is a musical instrument which is played by means of a keyboard. Widely used in Western music for solo performance, ensemble use, chamber music, and accompaniment, the piano is also very popular as an aid to composing and rehearsal. Although not portable and often expensive, the piano's versatility and ubiquity have made it one of the most familiar musical instruments.

Pressing a key on the piano's keyboard causes a felt covered hammer to strike steel strings. The hammers rebound, allowing the strings to continue vibrating at their resonant frequency. These vibrations are transmitted through a bridge to a sounding board that couples the acoustic energy to the air so that it can be heard as sound. When the key is released, a damper stops the string's vibration. Pianos are sometimes classified as both a percussion and a stringed instrument. According to the Hornbostel-Sachs method of music classification, it is grouped with Chordophones.
The word piano is a shortened form of the word pianoforte, which is seldom used except in formal language and derived from the original Italian name for the instrument, clavicembalo [or gravicembalo] col piano e forte (literally harpsichord with calm and strong). This refers to the instrument's responsiveness to keyboard touch, which allows the pianist to produce notes at different dynamic levels by controlling the speed with which the hammers hit the strings.

GRAND PIANO:

In grand pianos, the frame and strings are horizontal, with the strings extending away from the keyboard. There are several sizes of grand piano. A rough generalization distinguishes the "concert grand" (between about 2.2 m and 3 m long) from the "parlor grand" or "boudoir grand" (about 1.7 m to 2.2 m) and the smaller "baby grand".

All else being equal, longer pianos with longer strings have larger, richer sound and lower inharmonicity of the strings. Inharmonicity is the degree to which the frequencies of overtones (known as partials, partial tones, or harmonics) depart from whole multiples of the fundamental frequency. Pianos with shorter, thicker, and stiffer strings (e.g., baby grands) have more inharmonicity. The longer strings on a concert grand can vibrate more freely than the shorter, thicker strings on a baby grand, which means that a concert grand's strings will have truer overtones. This allows the strings to be tuned closer to equal temperament in relation to the standard pitch with less "stretching" in the piano tuning (See: Piano tuning). Full-size grands are usually used for public concerts, whereas smaller grands, introduced by Sohmer & Co. in 1884, are often chosen for domestic use where space and cost are considerations.
A grand piano action has a repetition lever for each key. If the key is pressed repeatedly and fairly quickly this repetition lever catches the hammer close to the strings, which assists the speed and control of repeated notes and trills.

UPRIGHT PIANO:

Upright pianos, also called vertical pianos, are more compact because the frame and strings are vertical. The hammers move horizontally, and are returned to their resting position by springs which are prone to wear and tear.

Upright pianos with unusually tall frames and long strings are sometimes called "upright grand" pianos.
Some authors classify modern pianos according to their height and, to modifications of the action that are necessary to accommodate the height.
Studio pianos are around 42 to 45 inches tall. This is the shortest cabinet that can accommodate a 'full-sized' action located above the keyboard.
Console pianos have a compact action (shorter hammers), and are a few inches shorter than studio models.
The top of a Spinet model barely rises above the keyboard. The action is located below, operated by vertical wires that are attached to the backs of the keys.
Anything taller than a studio piano is called an upright.

HARPSICHORD:

A harpsichord is a musical instrument played by means of a keyboard. It produces sound by plucking a string when each key is pressed.
Also in the harpsichord family are the smaller virginals, the muselar (also muselaar) virginals and the spinet (but not the clavichord or piano which are hammered instruments).

The harpsichord was widely used in baroque music. It became less popular following the invention of the piano, but its distinctive sound is still used in contemporary music. The heimishe harpsichord is used in the synagogue for Jewish madrigals.

PROPHET 5:

The Prophet-5 was an analog synthesizer manufactured by Sequential Circuits in San Jose, California between 1977 and 1984. The Prophet 5 was groundbreaking in that it was one of the first analog synthesizers to implement patch memory, a feature which stored user settings of every parameter on the synthesizer into internal memory. It is also one of the first polyphonic synthesizers, with a maximum polyphony of 5 voices, meaning that up to 5 notes can sound at the same time. The pitchbend and modulation wheels were made with a see through acrylic material similar of that to early Minimoogs. Like the Minimoog, the pitch wheel was not spring loaded, but had a detent mechanism which clicked every time it was centered.

The Prophet-5 was also known for its modulation capabilities. The "Poly-Mod" feature routed the output of the filter envelope generator and the second oscillator in each voice through two mixer knobs, which could then be connected to the pulse width and pitch controls on the first oscillator, to the filter cutoff frequency control, or all three at the same time. Since the second VCO was not limited to being an LFO, this allowed the Prophet-5 to generate 2-operator FM synthesis and ring modulator-style effects, as well as complex sweeping sounds.
Three revisions were produced, the first two using oscillators manufactured by Solid State Music, and the last one (Revision 3) using chips from Curtis Electronics.

KEYTAR:

A keytar is a relatively lightweight keyboard or synthesizer that is supported by a strap around the neck and shoulders, similar to the way a guitar is supported by a guitar strap. Keytars allow players a greater range of movement compared to conventional keyboards, which are placed on stands. The instrument has a musical keyboard for triggering musical notes and sounds. Controls for pitch bends, vibrato, portamento, and sustain are placed on the instrument’s “neck".

The Roland AX-7, which was manufactured from 2001 to 2007, contains many more advanced features than early keytars. It has 45 velocity sensitive keys (without aftertouch), and a 3-character LED display. Several features aimed towards stage performance are present, such as a pitch bend ribbon, touchpad-like expression bar, sustain switch, and volume control knob, all on the upper neck of the instrument. There is also a proprietary "D-Beam" interface, made up of infrared sensors that detect nearby motion. This interface can be used to trigger and control effects.
Currently Roland is planning to release the Roland AX-Synth in August 2009, a new model of keytar that contains its own synth sounds in addition to being a midi controller. Jean Michel Jarre has been using a prototype of the AX-Synth for the solo in Fin de Siecle during his current 2009 world tour.

CLAVICHORD:

The clavichord is a European stringed keyboard instrument known from the late Medieval, through the Renaissance, Baroque and Classical eras. Historically, it was widely used as a practice instrument and as an aid to composition. The clavichord produces sound by striking brass or iron strings with small metal blades called tangents. Vibrations are transmitted through the bridge(s) to the soundboard. The name is derived from the Latin word clavis, meaning "key" (associated with more common clavus, meaning "nail, rod, etc.") and chorda (from Greek χορδή) meaning "string, especially of a musical instrument".

The action of the clavichord is unique among all keyboard instruments in that one part of the action simultaneously initiates the sound vibration while at the same time defining the endpoint of the vibrating string, and thus its pitch. Because of this intimate contact between the player's hand and the production of sound, the clavichord has been referred to as the most intimate of instruments. Despite its many (serious) limitations, including extremely low volume, it has considerable expressive power, the player being able to control attack, duration, volume, and even provide certain subtle effects of swelling of tone and a type of vibrato unique to the clavichord.

CELESTA:

The celesta (pronounced /səˈlɛstə/) or celeste (pronounced /səˈlɛst/) is a struck idiophone operated by a keyboard. Its appearance is similar to that of an upright piano (four- or five-octave) or of a large wooden music box (three-octave). The keys are connected to hammers which strike a graduated set of metal (usually steel) plates suspended over wooden resonators. On four or five octave models one pedal is usually available to sustain or dampen the sound. The three-octave instruments do not have a pedal, due to their small "table-top" design. One of the most well-known works that makes use of the celesta is Tchaikovsky's "Dance of the Sugarplum Fairy" from The Nutcracker.

Celeste or celesta
The sound of the celesta is akin to that of the glockenspiel, but with a much softer and more subtle timbre. This quality gave rise to the instrument's name, celeste meaning "heavenly" in French.

The celesta is a transposing instrument; it sounds an octave higher than the written pitch. The original French instrument had a five-octave range, but as the lowest octave was considered somewhat unsatisfactory, it was omitted from later models. The standard French four-octave instrument is now gradually being replaced in symphony orchestras by a larger, five-octave German model. Although treated as a member of the percussion section in orchestral terms, it is almost always played by a pianist, the part being normally written on two bracketed staves, called a grand staff.

ACCORDION:

The accordion is a portable box-shaped musical instrument of the hand-held bellows-driven free-reed aerophone family, sometimes referred to as a squeezebox. A person who plays the accordion is called an accordionist.
It is played by compressing or expanding a bellows whilst pressing buttons or keys, causing valves,called pallets, to open, which allow air to flow across strips of brass or steel, called reeds, that vibrate to produce sound inside the body.[The instrument is sometimes considered a one-man-band as it needs no accompanying instrument. The performer normally plays the melody on buttons or keys on the right-hand manual, and the accompaniment — consisting of bass and pre-set chord buttons — on the left-hand manual.

The accordion is often used in folk music in Europe, North America and South America. It is commonly associated with busking. Some popular music acts also make use of the instrument. Additionally, the accordion is sometimes used in both solo and orchestra performances of classical music.
The oldest name for this group of instruments is actually harmonika, from the Greek harmonikos, meaning harmonic, musical. Today, native versions of the name accordion are more common. These names are a reference to the type of accordion patented by Cyrill Demian, which concerned “automatically coupled chords on the bass side.

BANDONEON:

The bandoneón is a free-reed instrument particularly popular in Argentina and Uruguay. It plays an essential role in the orquesta tipica, the tango orchestra. The bandoneón, called bandonion by its German inventor, Heinrich Band (1821-1860), was originally intended as an instrument for religious music and the popular music of the day, in contrast to its predecessor, the German concertina (or Konzertina), considered to be a folk instrument by some modern authors. German sailors and emigrants to Argentina brought the instrument with them in the late nineteenth century, where it was incorporated into the local music. Like concertinas, the bandoneón is played by holding the instrument between both hands and either pushing in or pulling out the instrument while simultaneously pressing one or more buttons with the fingers. It is considered part of the concertina family of instruments rather than the accordion family, although both are free reed instruments. In the concertina family the direction of button movement is parallel with the direction of bellows movement, whereas in the accordion family the direction of button or key movement is perpendicular to the bellows movement.

Unlike the piano accordion, the bandoneón does not have keys as per a piano, but has buttons on both sides. Additionally the notes produced on push and pull are different (bisonoric). This means that each keyboard has actually two layouts - one for the opening notes, and one for the closing notes. Since the right and left hand layouts are also different, this adds up to four different keyboard layouts that must be learned in order to play the instrument. However, there is the advantage that the notes tend to progress from the bass clef on the left hand to above the treble clef on the right. To make matters even more confusing, there are bandoneóns that are monosonoric (same note on push and pull). These variants are more compatible with a chromatic tuning structure.
None of these keyboard layouts is structured to facilitate playing scale passages of notes. Instead the structure is designed to aid the playing of chords, which makes sense when one considers the origin of the instrument and its intended purpose. For a beginning player, certain runs and musical forms can be difficult, but to an experienced player they come quite naturally.
With its arrival in Argentina around 1870, the bandoneón was adopted by those wishing to incorporate it into the Milonga music of that time (which requires a very fast player indeed). What sprang from that is Tango.

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