Eric's Sound (feat. William Neil)
Project Fourthstream, William Neil
Blue Devils (feat. William Neil & Tom Gullion)
Project Fourthstream, William Neil, Tom Gullion
Dance (feat. William Neil & Tom Gullion)
Project Fourthstream, William Neil, Tom Gullion
Hostile Sun (feat. William Neil & Tom Gullion)
Project Fourthstream, William Neil, Tom Gullion
St. Petersburg (feat. William Neil & Tom Gullion)
Project Fourthstream, William Neil, Tom Gullion
Rain in Me (feat. William Neil & Tom Gullion)
Project Fourthstream, William Neil, Tom Gullion
Deep Blue
Project Fourthstream
Quiet
Project Fourthstream
Black Madonna
Project Fourthstream
At the Edge
Project Fourthstream
O Ignis Spiritus (feat. Josefien Stoppelenburg)
Project Fourthstream, Josefien Stoppelenburg
Out of Darkness into Light (feat. Josefien Stoppelenburg)
Project Fourthstream, Josefien Stoppelenburg