Semantic Spaces (1994)
1 Flowers Become Screens 7:55
2 Metaphor 7:47
3 Resurrection 9:25
4 Incantation 6:21
5 Consensual Worlds 10:07
6 Metamorphosis 8:26
7 Flatlands 7:12
8 Sensorium 12:06
9 Gateway 8:09 Spheres, Vol. 1 (1994)
1 Monolith 10:02
2 Transmitter 13:36
3 Wavelength 13:22
4 Colony 12:06
5 Dark Matter 7:30
6 Cloud Barrier 6:47
7 Turmoil (Bonus Track) 3:49
Karma (1997)
1 Enchanted 8:32
2 Duende 5:24
3 Twilight 6:09
4 Silence 6:35
5 Forgotten Worlds 7:34
6 Lamentation 8:35
7 Euphoria (Firefly) 5:29
8 Remembrance 7:30
9 Wisdom 4:50
10 Koran 10:07
11 `til The End Of Time 4:35
Poem (2000)
1 Terra Firma 5:39
2 Innocente 6:29
3 Aria 6:50
4 Fallen Icons 6:30
5 Underwater 5:21
6 Myth 6:10
7 Nature`s Kingdom 5:15
8 Daylight 5:32
9 Temptation 8:06
10 A Poem For Byzantium 5:53
11 Amongst The Ruins 10:27
Poem - 2CD - Limited Edition (2001)
1 innocente (featuring leigh nash) 6:31
2 natures kingdom (featuring kirsty hawkshaw) 5:17
3 daylight (featuring matthew sweet) 5:33
4 underwater (featuring rani kamal) 5:23
5 fallen icons (featuring jennifer mclaren) 6:31
6 aria (featuring the mediaeval babes) 6:52
7 myth (featuring joanna stevens) 6:10
8 inner (sanctum featuring kirsty hawkshaw) 7:22
9 a poem for byzantium (featuring joanna stevens) 5:53
10 amongst the ruins 10:20
11 (cd2-bonus) silence (airscape remix edit featuring sarah mclachlan) 3:51
12 (cd2-bonus) innocente (lost witness remix edit featuring leigh nash) 3:30
13 (cd2-bonus) heavens (earth matt darey remix featuring kristy thirsk) 8:21
14 (cd2-bonus) silence (michael woods remix featuring sarah mclachlan) 8:08
15 (cd2-bonus) terra firma (featuring aude) 5:50