| arranged |
|---|
| A Sign | | Waltari | 8:33 |
| All Alone (Uten dé) | | Geir Rönning feat. Robert Wells | 4:16 |
| Arvaamatta tuuli kääntyy vastaan | | Juha Tapio | 3:56 |
| Beauty of the Beast | | Nightwish | 10:23 |
| Bless the Child | | Nightwish | 6:13 |
| Completely Alone | | Waltari | 12:08 |
| Deeper Into the Mud | | Waltari | 4:57 |
| Ever Dream | | Nightwish | 4:44 |
| Feel for You | | Nightwish | 3:55 |
| Forever Yours | | Nightwish | 3:51 |
| Misty Dreariness | | Waltari | 7:41 |
| Move | | Waltari | 4:45 |
| The Struggle for Life and Death of “Knowledge” | | Waltari | 3:35 |
| The Top / How Long Can U Go? | | Waltari | 10:26 |
| Time, Irrelevant | | Waltari | 7:56 |
| conducted |
|---|
| 2002-01 – 2002-04 | Ever Dream | | Nightwish | 4:44 |
| Beauty of the Beast | | Nightwish | 10:23 |
| Bless the Child | | Nightwish | 6:13 |
| Celestial Dream | | Stratovarius | 2:31 |
| Feel for You | | Nightwish | 3:55 |
| Forever Yours | | Nightwish | 3:51 |
| Herra Kuu | | Susanna Haavisto | 5:07 |
| Infinity | | Stratovarius | 9:22 |
| Look Out Tonite | | Waltari feat. Apocalyptica | 5:56 |
| Mother Gaia | | Stratovarius | 8:18 |
| Myrskyluodon Maija | | Karita Mattila | 5:25 |
| Noinko vaikeeta se on? | | Maija Vilkkumaa | 3:40 |
| Purify Yourself | | Waltari feat. Apocalyptica | 5:21 |
| instruments |
|---|
| 2002-02 | Kraft: I. | percussion | Toimii Ensemble, Finnish Radio Symphony Orchestra, Esa-Pekka Salonen | 16:04 |
| 2002-02 | Kraft: II. | percussion | Toimii Ensemble, Finnish Radio Symphony Orchestra, Esa-Pekka Salonen | 14:13 |
| 2013-01 | Little Unhappy Boy | solo and vibraphone | Reija Lang & Arricone Big Band | 4:11 |
| 2013-01 | The Old Country | solo and vibraphone | Reija Lang & Arricone Big Band | 5:22 |
| Herra Kuu | vibraphone | Susanna Haavisto | 5:07 |
| instruments arranged |
|---|
| External | cello and violin | Waltari | 4:55 |
| Halleluja | strings | Hector | 6:10 |
| Herra Kuu | harp | Susanna Haavisto | 5:07 |
| Liquid | strings | The Rasmus | 4:18 |
| Look Out Tonite | cello and violin | Waltari feat. Apocalyptica | 5:56 |
| My One and Only Love | strings | Geir Rönning feat. Nina Tapio | 2:57 |
| Purify Yourself | cello and violin | Waltari feat. Apocalyptica | 5:21 |
| Walkin’ in the Neon | violin | Waltari feat. Anita Davis | 4:07 |
| miscellaneous roles |
|---|
| Noinko vaikeeta se on? | | Maija Vilkkumaa | 3:40 |
| orchestrated |
|---|
| A Sign | | Waltari | 8:33 |
| Celestial Dream | additional | Stratovarius | 2:31 |
| Completely Alone | | Waltari | 12:08 |
| Deeper Into the Mud | | Waltari | 4:57 |
| Herra Kuu | | Susanna Haavisto | 5:07 |
| Infinity | additional | Stratovarius | 9:22 |
| Misty Dreariness | | Waltari | 7:41 |
| Mother Gaia | additional | Stratovarius | 8:18 |
| Move | | Waltari | 4:45 |
| The Struggle for Life and Death of “Knowledge” | | Waltari | 3:35 |
| The Top / How Long Can U Go? | | Waltari | 10:26 |
| Time, Irrelevant | | Waltari | 7:56 |
| produced |
|---|
| Beauty of the Beast | | Nightwish | 10:23 |
| Bless the Child | | Nightwish | 6:13 |
| Celestial Dream | additional | Stratovarius | 2:31 |
| Ever Dream | | Nightwish | 4:44 |
| Feel for You | | Nightwish | 3:55 |
| Forever Yours | | Nightwish | 3:51 |
| Infinity | additional | Stratovarius | 9:22 |
| Mother Gaia | additional | Stratovarius | 8:18 |
| vocals arranged |
|---|
| Celestial Dream | additional and choir vocals | Stratovarius | 2:31 |
| Infinity | additional and choir vocals | Stratovarius | 9:22 |
| Mother Gaia | additional and choir vocals | Stratovarius | 8:18 |
| conducted |
|---|
| 1995 | Yeah! Yeah! Die! Die! Death Metal Symphony in Deep C | | Waltari | |
| Lauluja merelle | | Karita Mattila | |
| composed |
|---|
| Jo loppuvi öljy mun lampustain | | | |
| orchestrated |
|---|
| Beauty of the Beast | | | |
| Bless the Child | | | |
| Christabel | | | |
| Ever Dream | | | |
| Feel for You | | | |
| Forever Yours | | | |
| Long Lost Love | | | |
| One More Night to Live | | | |
