Discography

With Scorpions

• Fly to the Rainbow (1974) - Guitar, vocals
• In Trance (1975) - Guitar, vocals
• Virgin Killer (1976) - Guitar, vocals
• Taken by Force (1977) - Guitar, vocals
• Tokyo Tapes (live recording, 1978) - Guitar, vocals

With Electric Sun

• Earthquake (1979) - Guitar, vocals
• Fire Wind (1981) - Guitar, vocals
• Beyond the Astral Skies (1985) - Lead/harmony vocals, guitar, keyboard, bass

Solo and classical works (released)

• 1991 - Aquila Suite - 12 Arpeggio Concert Etudes for Solo Piano
• 1996 - Sky of Avalon - Prologue to the Symphonic Legends (with Sky Orchestra)
• 2000 - Transcendental Sky Guitar Vol. I & II
• 2003 - Metamorphosis of Vivaldi's Four Seasons (with Sky Orchestra)
  

Solo and classical works (unreleased)

• 1987 - Sky Concerto
• 1992 - Europa ex Favilla (symphony)
• 1994 - Hiroshima de Profundis (symphony)
• 1996/97/98 - Requiem for an Angel (dedicated to the memory of Monika Dannemann)

Videography

• 2000 - The Electric Sun Years Vol. I & II (in the Historical Performances series)
• 2002 - Legends Of Rock: Live At Castle Donington