Producer and engineer.
ALBUMS
Kalapana
Many Classic Moments
1978
Kalapana
Kalapana III
1977
Kalapana
Kalapana II
1976, 
,
, Soft Rock/Jazz-Funk/Ballad
Summer
In Malibu
1976
Kalapana
Kalapana
1975
Kalapana
Kalapana III
1977
Kalapana
Kalapana
1975
Various
No Nukes - From The Muse Concerts For A Non-Nuclear Future - Madison Square Garden - September 19-23, 1979
1979, 3x Vinyl Santa Maria Pressing, ,
, Pop Rock/Funk/Folk Rock
APPEARANCES +
Alkana
Welcome To My Paradise
2012, 
,
, Psychedelic Rock/Prog Rock/Heavy Metal/Hard Rock
Styx
The Complete Wooden Nickel Recordings
2005, 2x CD, 
,
, Prog Rock
Styx
Rock Galaxy
1980
Southern Cookin'
Southern Cookin'
1979
Styx
Styx I
1979
The R.J. Keen Band
The R.J. Keen Band
1978
Nathan Lam With The David Tilman Chorus
I Shall Sing
1976, LP, Album, Blue Pearl (3), Blue Pearl (3)
Boa
Schizoid
1975, LP, Album, Wooden Nickel Records, ,
, Hard Rock/Pop Rock/Glam
Monda Harris²
Monda Harris²
1975, Vinyl,
Styx
Pieces Of Eight / Styx I
2000
Styx
Styx I