The current longest piece of music being recored is Longplayer. It has been recording for the last 11 years. And it is due to end in 2999. Look it up at Longplayer.org
The longest recorded piece of music used to be by a noise band called Bull of Heaven, "The Chosen Priest and Apostle of Infinite Space." It's more than 2 months long. They also have other works that are multiple weeks long. They have however bested this with a song that is 50 000 hours in length, that's more than 6 years of continuous song! One must note, however, that Bull of Heaven does not write actual music but rather repeats sound effects at very slow speeds for days on end. WORLD’S shortest SONG
"You Suffer" is a song by the British grindcore band Napalm Death, from their debut album, Scum. The song has earned a place in the Guinness Book of Records as the shortest recorded song ever. It is precisely 1.316 seconds long. The song was written by band members Nicholas Bullen and Justin Broadrick during the sessions for the From Enslavement to Obliteration demo recording in March 1986, and is featured on the album Scum, released in 1987. World’s best selling single
According to Guinness World Records, the holiday perennial "White Christmas" (1942) by Bing Crosby is the best-selling single worldwide, with estimated sales of over 50 million copies. The song recognized as "the best-selling single of all time" was released before the pop/rock singles-chart era and "was listed as the world's best-selling single in the first-ever Guinness Book of Records (published in 1955) and— remarkably — still retains the title more than 50 years later." Guinness World Records states that double A-side charity single "Candle in the Wind 1997"/"Something About the Way You Look Tonight" (1997) by Elton John, a tribute to the late Diana, Princess of Wales, is "the biggest-selling single since UK and US singles charts began in the 1950s, having accumulated worldwide sales of 33 million...