The instrument is expected to fetch over £600,000
He confirmed that the Swedish pop group still have no plans to reunite
The 70s pop veterans admit, however, to having "never quite understood" punk
The band could only get tax deductions on clothes that were "in no way suitable for everyday wear."
Singer says band could mark 40th anniversary of 'Waterloo' with a concert
Eurovision group's greatest hits collection has sold more than 5.1million copies
Singer Agnetha Faltskog also regrets the band's lack of choreography during live shows
'We Write the Story' will be performed at this year's event in Sweden on May 18
The Swedish band's greatest hits collection has sold more CDs than Adele's '21'
Ladbrokes also offer odds of Swedish band appearing at Royal Wedding
Benny Andersson threatens legal action over the use of their 1976 hit
Jimmy Cliff and David Geffen also due to be honoured
Half of the Swedish band will take part in London Hyde Park gig
'Kristina' is set for two nights at Carnegie Hall
Andersson reckons contest is no longer worthwhile musically
Benny Andersson reveals pop side-project collaboration
He says people who use the site are 'lazy and mean'
Swedish group lose out in music category
Russian Prime Minister allegedly paid tribute band £20,000 for private concert
Agnetha and Anni-Frid deny that they're enemies
'Mamma Mia!' gets music nod
Hundreds of pieces of memorabilia to be displayed
Bjorn Ulvaeus gets millions
While Kid Rock sits on single summit