Carillon

Organ interface for bells.

Some information from Wikipedia:

A carillon is a musical instrument that is usually housed in a free-standing bell tower, or the belfry of a church or other municipal building. The instrument consists of at least 23 cast bronze cup-shaped bells, which are played serially to play a melody, or sounded together to play a chord. A carillon is played by striking a keyboard the keys of which are sometimes called "batons" with the fists and by pressing the keys of a pedal keyboard with the feet. The keys mechanically activate levers and wires that connect to metal clappers that strike the bells, allowing the performer, the carillonneur, to vary the intensity of the note according to the force applied to the key.

The carillon is the heaviest of all extant musical instruments; the total weight of bells alone can be 100 tons in the largest instruments. The greatest concentration of carillons is still found in the Netherlands, Belgium, and Northern France, where they were symbols of civic pride and status. Some of the most spectacular are now protected by UNESCO as part of the world heritage site the Belfries of Belgium and France.

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Mountain dulcimer

Some information from Wikipedia:

The mountain dulcimer is a fretted string instrument of the zither family, typically with three or four strings. It is native to the Appalachian region of the United States. The body extends the length of the fingerboard, and its fretting is generally diatonic.

The traditional way to play the instrument is to lay it flat on the lap and pluck or strum the strings with the right hand, while fretting with the other. The dulcimer may also be placed in a similar position on a piece of furniture, such as a table or chest of drawers, to enhance the sound. There are two predominant methods of fretting. First, the strings may be depressed with the fingertips of the fretting hand. Using this technique, all the strings may be fretted, allowing the player to produce chords. Second, the melody string, the string closest to the player, may be depressed with a "noter," typically a short length of dowel or bamboo. Using this method, only the melody string is fretted and the other strings act as drone strings (the melody string may be doubled, so that the melody can be better heard over the drones). In this second style of playing, the combination of the drone strings and the buzz of the noter on the melody strings produces a unique sound.

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Berimbau

Musical bow from Africa.

Some information from Wikipedia:

The berimbau is a single-string percussion instrument, a musical bow, from Brazil. The berimbau's origins are not entirely clear, but there is not much doubt on its African origin, as no Indigenous Brazilian or European people use musical bows, and very similar instruments are played in the southern parts of Africa. The berimbau was eventually incorporated into the practice of the Afro-Brazilian martial art capoeira, where it commands how the capoeiristas move in the roda.

The berimbau consists of a wooden bow (verga), about 1.2 to 1.5 m, with a steel string (arame) tightly strung and secured from one end of the verga to the other. A gourd (cabaça), dried, opened and hollowed-out, attached to the lower portion of the Verga by a loop of tough string, acts as a resonator.

To play the berimbau, one holds it in one hand, wrapping the two middle fingers around the verga, and placing the little finger under the cabaça's string loop (the "anel"), and balancing the weight there. A small stone or coin (pedra or dobrão) is held between the index and thumb of the same hand that holds the berimbau. The cabaça is rested against the abdomen. In the other hand, one holds a stick (baqueta or "vaqueta" – usually wooden, very rarely made of metal) and a shaker (caxixi). One strikes the arame with the vaqueta to produce the sound. The caxixi accompanies the vaqueta. The dobrão is moved back and forth from the arame to change the pitch produced by the berimbau. The sound can also be altered by moving the cabaça back and forth from the abdomen, producing a wah-like sound.

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Kora

Harp with two rows of strings. It changes play technique and make harp more mobile.

Some information from Wikipedia:

The kora is a 21-string bridge-harp used extensively by people in West Africa.

A kora is built from a large calabash cut in half and covered with cow skin to make a resonator, and has a notched bridge like a lute or guitar. The sound of a kora resembles that of a harp, though when played in the traditional style, it bears a closer resemblance to flamenco and delta blues guitar techniques. The player uses only the thumb and index finger of both hands to pluck the strings in polyrhythmic patterns (using the remaining fingers to secure the instrument by holding the hand posts on either side of the strings).

Traditional koras feature 21 strings, eleven played by the left hand and ten by the right. Modern koras made in the Casamance region of southern Senegal sometimes feature additional bass strings, adding up to four strings to the traditional 21. Strings were traditionally made from thin strips of hide, for example antelope skin - now most strings are made from harp strings or nylon fishing line, sometimes plaited together to create thicker strings.

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Membrane pipe

Couldn't find information about this instrument, but as i understand it's like kazoo with play holes. You can see the process of creating such thing here

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