Vibraphone Vibraphone The vibraphone (also known as the vibraharp or simply the vibes) is a musical instrument in the struck idiophone subfamily of the percussion family. It consists of tuned metal bars, and is usually played by holding two or four soft mallets and striking the bars. A person who plays the vibraphone is called a "vibraphonist" or "vibraharpist". The vibraphone resembles the xylophone, marimba, and glockenspiel, one of the main differences between it and these instruments being that each bar is paired with a resonator tube that has a motor-driven butterfly valve at its upper end. The valves are mounted
Which? throughout the year. Unusual test subjects As well as the usual household products, "Which?" has tested things such as: Most "Which?" publications are supplied only to subscribers, and are not on general sale. "Which?" magazine, started in 1957, is the organisation’s principal publication. The magazine reports on consumer issues of the day, publishes product testing results and findings of original research and investigations. The magazine also discusses trading which it believes goes against the interests of consumers. Examples of such discussions include an exposé into solar panel heating installation companies, an undercover enquiry with the RNID revealing serious problems at