Oliver Hartmann
Echoes - Live From The Dark Side - A Tribute To Pink Floyd (2019)
as Guitarist and Singer
Echoes - Barefoot To The Moon - An Acoustic Tribute To Pink Floyd (2015)
as Acoustic Guitar, Vocals
Avantasia - The Flying Opera: Around the World in Twenty Days (2011)
as Guitars & Backing vocals (lead vocals on tracks 10 and 16)
