Members:
Tom Barlage (saxophone, keyboards)
Willem Ennes (piano, keyboards)
Ad Kooi (bass, 1966-70)
Ap "Appie" Alberts (saxophone, 1966)
Frits Lagerwerff (trumpet, cornet, 1966-68)
Frank de Graaf (vocals, 1968)
Frits Schmidt (drums, 1967)
Hans Waterman (drums, percussion, 1967-82)
Peter van der Sande (vocals, bass, 1970-71)
Gus "Guus" Willemse [aka Gus Williams] (bass, vocals, 1971-83)
Louis de Vries (vocals)
Harrie Hardholt (guitar, 1982)
Jaap van Eik (vocals, guitar)
Arthur Clarck (vocals)
Adri Klone (vocals)
Michiel Pos (vocals, guitar, saxophone, flute)

Associated Acts:
A.A. & The Doctors
Jan Akkerman
Beehive
Jim Capaldi
Carlsberg
Cuby + The Blizzards
Focus
Rob Hoeke
Houseband
Inner Sleeve
The Jury
The Keys
Livin' Blues
Kazimierz Lux
Lynx
Margriet Eshuijs Band
Nicky & Shouts
The Pretty Things
Railway
Rene & The Alligators
The Rene Five
Roden Rockers
Serpentine
Erwin Somer Group
Trace

Also Called:
Soulution

Genres:
Progressive Rock

Formed: In 1966 in Groningen, Netherlands

Debut Album: Solution (1972)

Did You Know:
The group disbanded in 1983