A keyboard instrument is a musical instrument which is played using a musical keyboard. The most common of these is the piano. Other widely used keyboard instruments include organs of various types as well as other mechanical, electromechanical and electronic instruments. In common language, it is mostly used to refer to keyboard-style synthesizers.Among the very earliest keyboard instruments are the pipe organ, hurdy gurdy, clavichord and harpsichord. The organ is without doubt the oldest of these, appearing in the 3rd century BC, though this early instrument—called hydraulis—did not use a keyboard in the modern sense. From its invention until the 14th century, the organ remained the only keyboard instrument. Often, the organ did not feature a keyboard at all, rather buttons or large levers which were operated by a whole hand. Almost every keyboard until the 15th century had naturals to each octave.

The clarinet is a type of woodwind instrument. The name derives from adding the suffix -et (meaning little) to the Italian word clarino (meaning a type of trumpet designed for high-register playing), as the first clarinets had a strident tone similar to that of a trumpet. The instrument has an approximately cylindrical bore, and uses a single reed.

Clarinets comprise a family of instruments of differing sizes and pitches. The clarinet family is the largest such woodwind family, with more than a dozen types, ranging from the (extremely rare) BBB♭ octo-contrabass to the A♭ soprano (piccolo clarinet). Of these, many are rare or obsolete (there is only one BBB♭ octo-contrabass clarinet in existence, for example), and music written for them is usually played on the common types. The unmodified word clarinet usually refers to the B♭ soprano clarinet, by far the most common clarinet.

The saxophone (also referred to as the sax) is a conical-bore transposing musical instrument that is a member of the woodwind family. Saxophones are usually made of brass and played with a single-reed mouthpiece similar to that of the clarinet. The saxophone was invented by the Belgian instrument maker Adolphe Sax in 1846. He wanted to create an instrument that would both be the most powerful and vocal of the woodwinds and the most adaptive of the brass, which would fill the vacant middle ground between the two sections. He patented the sax on June 28, 1846 in two groups of seven instruments each. Each series consisted of instruments of various sizes in alternating transposition. The series pitched in B♭ and E♭, designed for military bands, has proved extremely popular and most saxophones encountered today are from this series. Instruments from the so-called "orchestral" series pitched in C and F never gained a foothold.

The bansuri (Hindi: बांसुरी,Nepali: बाँसुरी, Marathi: बासरी Assamese: বাঁহি, Bengali: বাঁশি) is a transverse alto flute of Bangladesh, India and Nepal made from a single hollow shaft of bamboo with six or seven finger holes. An ancient musical instrument associated with cowherds and the pastoral tradition, it is intimately linked to the love story of Krishna and Radha, and is depicted in Buddhist paintings from around 100 AD. The Bansuri is revered as Lord Krishna's divine instrument, and is often associated with Krishna's Rasa lila; The word bansuri originates in the Sanskrit bans [bamboo] + sur [musical note]. There are two varieties of bansuri: transverse, and fipple. The fipple flute is usually played in folk music and is held at the lips like a whistle. Because it enables superior control, variations and embellishments, the transverse variety is preferred in Indian classical music

The tabla (or tabl, tabla) (Hindi: तबला, Marathi: तबला, Kannada: ತಬಲ, Telugu: తబల, Tamil: தபேலா, Malayalam: തബല, Bengali: তবলা, Punjabi: ਤਬਲਾ, Nepali: तबला, Urdu: طبلہ, Arabic: طبل، طبلة‎, Persian: طبل‎) is a popular Indian percussion instrument (of the membranophone family), similar to bongos, used in Hindustani classical music and in popular and devotional music of the Indian subcontinent. The instrument consists of a pair of hand drums of contrasting sizes and timbres. The term 'tabla is derived from an Arabic word, tabl, which simply means "drum." ^[1]

Playing technique involves extensive use of the fingers and palms in various configurations to create a wide variety of different sounds, reflected in the mnemonic syllables (bol). The heel of the hand is used to apply pressure or in a sliding motion on the larger drum so that the pitch is changed during the sound's decay.

Veena is a stringed instrument. It consists of a large body hollowed out of a block of wood. The stem of the instrument is also made of wood. The bridge is placed on the flat top of the body of the veena and the neck attached to the stem is usually carved into weird figure like the head of the dragon.

A gourd which is smaller than the rounded part of the body is fixed underneath the neck. Twenty one metallic frets are fixed on the stem by means of a resinous substance.

The veena has seven strings. Of them four are main strings that pass over the frets and are attached to the pegs of the neck. The other strings are used as side strings for rhythmic accompaniment. These strings pass over an arched bridge made of brass. They lie flat over the top of the body and are secured to the main bridge.

The santoor is an ancient stringed musical instrument native to Kashmir (India) and Persia. It is a trapezoid-shaped hammered dulcimer often made of walnut, with seventy two strings. The special-shaped mallets (mezrab) are lightweight and are held between the index and middle fingers. A typical santoor has two sets of bridges, providing a range of three octaves.

The Kashmiri santoor is more rectangular and can have more strings than the Persian counterpart, which generally has 72 strings. The santoor as used in Kashmiri classical music is played with a pair of curved mallets made of walnut wood and the resultant melodies are similar to the music of the harp, harpsichord, or piano. The sound chamber is also made of walnut wood and the bridges are made of local wood and painted dark like ebony. The strings are made of steel.

The tambura, tanpura, tamboura or taanpura is a long-necked plucked lute (a stringed instrument found in different forms and in many places). The body shape of the tambura somewhat resembles that of the sitar, but it has no frets – and the strings are played open. One or more tamburas may accompany other musicians or vocalists. It has four or five (rarely six) wire strings, which are plucked one after another in a regular pattern to create a harmonic resonance on the basic note (bourdon or drone function). Tamburas come in different sizes and pitches: larger "males", smaller "females" for vocalists, and a yet smaller version is used for accompanying sitar or sarod, called tamburi or tanpuri

The shehnai, shahnai, shenai or mangal vadya, is an aerophonic (wind) instrument, a double reed conical oboe, common in North India, West India and Pakistan, made out of wood, with a metal flare bell at the end. Its sound is thought to create and maintain a sense of auspiciousness and sanctity and, as a result, is widely used during marriages, processions, and in temples of West India, although it is also played in concerts. The South Indian equivalent of the shehnai is the nadaswaram.
This tube-like instrument gradually broadens towards the lower end. It usually has between six and nine holes. It employs two sets of double reeds, making it a quadruple reed woodwind. By controlling the breath, various tunes can be played on it.

Cymbals are a common percussion instrument. Cymbals consist of thin, normally round plates of various alloys; see cymbal making for a discussion of their manufacture. The greater majority of cymbals are of indefinite pitch, although small disc-shaped cymbals based on ancient designs sound a definite note (see: crotales). Cymbals are used in many ensembles ranging from the orchestra, percussion ensembles, jazz bands, heavy metal bands, and marching groups. Drum kits usually incorporate at least a crash, ride or crash/ride, and a pair of hi-hat cymbals

The horn is a brass instrument consisting of about 12–13 feet (3.7–4.0 m) of tubing wrapped into a coil with a flared bell. A musician who plays the horn is called a horn player (or less frequently, a hornist).

Descended from the natural horn, the instrument is often informally known as the French horn. However, this is technically incorrect since the instrument is not French in origin, but German. Therefore, the International Horn Society has recommended since 1971 that the instrument be simply called the horn.^[2] French horn is still the most commonly used name for the instrument in the United States.

The trumpet is the musical instrument with the highest register in the brass family. Trumpets are among the oldest musical instruments,dating back to at least 1500 BC. They are played by blowing air through closed lips, producing a "buzzing" sound which starts a standing wave vibration in the air column inside the instrument. Since the late 15th century they have been constructed of brass tubing, usually bent twice into a rounded oblong shape.

There are several types of trumpet; the most common is a transposing instrument pitched in B♭ with a tubing length of about 148 cm. Earlier trumpets did not have valves, but modern instruments generally have either three piston valves or, more rarely, three rotary valves. Each valve increases the length of tubing when engaged, thereby lowering the pitch.

A gong (Malay: gong) is an East and South East Asian musical percussion instrument that takes the form of a flat metal disc which is hit with a mallet.

Gongs are broadly of three types. Suspended gongs are more or less flat, circular discs of metal suspended vertically by means of a cord passed through holes near to the top rim. Bossed or nipple gongs have a raised centre boss and are often suspended and played horizontally. Bowl gongs are bowl-shaped, and rest on cushions and belong more to bells than gongs. Gongs are made mainly from bronze or brass but there are many other alloys in use.

Gongs produce two distinct types of sound. A gong with a substantially flat surface vibrates in multiple modes, giving a "crash" rather than a tuned note. This category of gong is sometimes called a tam-tam to distinguish it from the bossed gongs that give a tuned note. In Indonesian gamelan ensembles, some bossed gongs are deliberately made to generate in addition a beat note in the range from about 1 to 5 Hz. The use of the term "gong" for both these types of instrument is common.

The Sārangī (Hindi: सारंगी, Punjabi: ਸਰੰਗੀ, sarangī) is a bowed, short-necked string instrument of India which is originated from Rajasthani folk instruments. It plays an important role in India's Hindustani classical music tradition. Of all Indian instruments, it is said to most resemble the sound of the human voice – able to imitate vocal ornaments such as gamakas (shakes) and meend (sliding movements).There are different versions for the meaning and origins of sarangi but the most logical and widely accepted ones are that the word sarangi is derived from two Hindi words: sau (meaning hundred) and rang (meaning colour) hence meaning the instrument of 100 colours

A harmonium is a free-standing keyboard instrument similar to a reed organ. Sound is produced by air being blown through sets of free reeds, resulting in a sound similar to that of an accordion. The air is usually supplied by bellows operated by the foot, hand, or knees.In much of Europe, the term harmonium is used to describe all pedal-pumped keyboard free-reed instruments, making no distinction whether it has a pressure or suction bellows.

The piano is a musical instrument played by means of a keyboard. It is one of the most popular instruments in the world. Widely used in classical and jazz music for solo performances, 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 world's most familiar musical instruments.The piano was founded on earlier technological innovations. The first string instruments with struck strings were the hammered dulcimers.^[2] During the Middle Ages, there were several attempts at creating stringed keyboard instruments with struck strings.^[3] By the 17th century, the mechanisms of keyboard instruments such as the clavichord and the harpsichord were well known. In a clavichord the strings are struck by tangents, while in a harpsichord they are plucked by quills. Centuries of work on the mechanism of the harpsichord in particular had shown the most effective ways to construct the case, soundboard, bridge, and keyboard.

An electric guitar is a guitar that uses the principle of direct electromagnetic induction or piezoelectricity to convert vibrations of its metal strings into electric audio signals. The signal generated by an electric guitar is too weak to drive a loudspeaker, so it is amplified before sending it to a loudspeaker. Since the output of an electric guitar is an electric signal, the signal may easily be altered using electronic circuits to add "color" to the sound. Often the signal is modified using effects such as reverb and distortion.

Invented in 1931, the electric guitar became a necessity as jazz musicians sought to amplify their sound. Since then, the electric guitar has become the most important instrument in popular music It has evolved into a stringed musical instrument that is capable of a multitude of sounds and styles. It served as a major component in the development of rock and roll and countless other genres of music.

The Madal (Nepali: मादल), double-headed drum of Nepalese origin (of the Membranophone family), used mainly for rhythm-keeping in Nepalese folk music, is the most popular and widely used hand drum in Nepal.The Madal consists of a cylindrical body with a slight bulge at its center, closed on both ends (the sides are often referred to as "heads", one head is smaller than the other).

The madal has a strand that goes around the waist of the person playing it to hold it horizontally . Playing technique involves rhythmic struck one either ends(heads) with palm. The heads vibrate to produce sound when struck.

This typical Nepalese percussion instrument is the backbone of most of Nepali folk music. The well-known Nepali musician Ranjit Gazmer introduced this instrument to Bollywood music and has used it in many Bollywood songs such as 'Hum dono do premi duniya chhod chale', 'Kanchha re kanchhi re' and many others. There is also a madal drum from the ancient tribes of India.

The ancient name of Madal was Mardal (मर्दल in Nepali).

Typically, a wooden log is carved so as to form a hollow cavity, called Ghar (घार). The two opposite openings are covered with cow leather. The cow leather on either head also consists of a black inner concentric circle. This layer is made up of a black substance known as Khari (खरी), which is the powdered mixture of Kansh (काँश) and Kit (किट). This black substance give the skin weight and cause the tone to reverberate like a low pitched bell. The heads are not of the same size; the larger and the smaller heads are often refereed to as male and female respectively. The madal's other feature are the strands that overlay the central body. These strands, also made up of cow leather, are used to tune the instrument.

String instruments are musical instruments that produce sound from vibrating strings. In the Hornbostel-Sachs scheme of musical instrument classification, used in organology, they are called chordophones. The most common instruments in the string family are guitar, electric bass, violin, viola, cello, double bass, banjo, mandolin, ukulele, and harp.All string instruments produce sound from one or more vibrating strings, transferred to the air by the body of the instrument (or by a pickup in the case of electronically amplified instruments). They are usually categorized by the technique used to make the strings vibrate (or by the primary technique, in the case of instruments where more than one may apply.) The three most common techniques are plucking, bowing and striking.

Guitars are traditionally constructed of various woods and strung with animal gut or, more recently, with either nylon or steel strings. Some modern guitars are made of polycarbonate materials. Guitars are made and repaired by luthiers. There are two primary families of guitars: acoustic and electric.There are three main types of modern acoustic guitar: the classical guitar (nylon-string guitar), the steel-string acoustic guitar, and the archtop guitar. The tone of an acoustic guitar is produced by the vibration of the strings, which is amplified by the body of the guitar, which acts as a resonating chamber. The classical guitar is often played as a solo instrument using a comprehensive fingerpicking technique.