In the 80ern he was also member of the Erling Kroner Tentet; he played th Danish radio big band (conducted by Palle Mikkelborg), recording the Miles Davis album Aura.
Sommerro has since that time performed on his own, with various groups, and as an accompanist for, among others, Erik Bye, Sigmund Groven, Geirr Lystrup, Halvdan Sivertsen, Bjørn Alterhaug, Dalakopa, Arve Tellefsen, John Pål Inderberg, Palle Mikkelborg, Åge Aleksandersen, Arne Domnerus, Aly Bain, and Choeur Grégorien de Paris.
Michel Herr had the opportunity to play with great American musicians like Joe Lovano, Chet Baker, Lee Konitz, Art Farmer, Joe Henderson, Johnny Griffin, Pepper Adams, Bill Frisell, as well as many top European musicians, such as Palle Mikkelborg, Riccardo Del Fra, Palle Danielsson, Richard Galliano and the best Belgian musicians: Philip Catherine, Steve Houben, Bert Joris and others.
Staffan William-Olsson (born 13 December 1959 in Gothenburg, Sweden) is a Swedish Jazz musician (guitar) and composer, known guitarist of The Real Thing, and the collaborations with the likes of Bob Berg, Lee Konitz and Palle Mikkelborg.
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William-Olsson was after classical piano studies at Göteborg Musikhögskola (he is autodidact guitarist), the replasement for Ulf Wakenius in the Swedish fusion band Hawk on Flight, and also collaboraterd with such as Bob Berg, Lee Konitz and Palle Mikkelborg.