The size most commonly used in the orchestra is called the contrabass-tuba, or double-bass tuba.

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In their rumbas Congolese musicians slowed the Cuban tempo and added African instruments, drums and the thumb-piano, to the guitar and double-bass.

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Patricia da Silva, a Brazilian double-bass player who is no more than five feet tall, stood out for her steady hand and warm personality.

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They gave us an insight to the heavier side of the Bury music scene, with two guitarists and a drummer addicted to his double-bass drum pedals.

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Composers wrote complex pieces meant for instruments of varying sizes and levels of delicacy, and as history hummed its way from Monteverdi to Mahler, orchestras grew larger and less mobile (just ask any double-bass player).

FORBES: TRACKING THE EVOLUTION OF TAKE-OUT TUNES