ALBUMS
Haggard
Awaking The Gods - Live In Mexico
2001, CD, 
,
, Modern Classical/Death Metal/Neofolk
Haggard
Awaking The Centuries
2000, CD, 
,
, Death Metal/Symphonic Metal
Haggard
And Thou Shalt Trust... The Seer
1997, CD, ,
, Modern Classical/Death Metal/Ambient/Doom Metal/Gothic Metal/Symphonic Metal
Haggard
And Thou Shalt Trust... The Seer!
1996, ,
, Symphonic Metal/Death Metal/Doom Metal/Gothic Metal
Haggard
Awaking The Centuries
2013, 
,
, Modern Classical/Death Metal/Symphonic Metal
Haggard
And Thou Shalt Trust... The Seer
1997, 
,
, Modern Classical/Death Metal/Ambient/Doom Metal/Gothic Metal/Symphonic Metal
APPEARANCES +
Emmanuel Pahud
Solo
2018, 2xCD, Album, Warner Classics
DJ Maxwell
Trust No One Part III
2015, 2xCD, Album, Atlantis (6), 
,
, Italodance/Downtempo/Hardstyle/Experimental/Lento Violento
Telemann* - Klaus Mertens, Vincent Frisch, Thomas Fritzsch, Stefan Maass, Michael Schönheit
Telemannisches Gesangbuch
2013, CD, Album, Carus
Various
Metal Meets Classic
2004, CD, Album, RP + CD, Album, RE + CD, Album, RP + Bo, Drakkar Classic, BMG, 
,
, Symphonic Rock/Neo-Classical
Enchantment
Dance The Marble Naked
1994
Various
Krëschtdag Heiheem
1987
Stefan
Sei Ganz Zärtlich
LP, Album, MCP Records (2)