| 2024-08-21 17:45:15 | Rebel_O-Conner | Added credit for Olsen on Babilon: Music |
| 2024-05-09 07:22:21 | menace | Edited notes |
| 2024-01-04 09:28:50 | psenough | Added credit for Olsen on Shout! #1: Music |
| 2024-01-04 09:21:13 | psenough | Added credit for Olsen on Passion #1: Music |
| 2023-11-14 09:56:23 | psenough | Added credit for Olsen on Venom: Music |
| 2023-01-22 14:57:21 | menace | Added Olsen as a member of Vaudeville |
| 2023-01-22 14:57:09 | menace | Added Olsen as a member of Thunder |
| 2023-01-22 14:56:59 | menace | Added Olsen as a member of Gedeon |
| 2023-01-22 14:56:54 | menace | Added Olsen as a member of Feniks |
| 2023-01-22 14:56:47 | menace | Added Olsen as a member of Equinoxe |
| 2023-01-22 14:56:35 | menace | Added Olsen as a member of Chariot |
| 2023-01-22 14:56:26 | menace | Added Olsen as a member of Bad Bytes |
| 2023-01-22 14:56:14 | menace | Added Olsen as a member of Dionizos |
| 2022-12-31 19:57:23 | 100bit | Added credit for Olsen on Hot Style #11: Music |
| 2022-08-16 14:20:26 | menace | Added credit for Olsen on Ripper: Music |
| 2019-03-11 06:52:18 | menace | Added credit for Olsen on Cruel Potato: Music |
| 2019-03-11 06:39:11 | menace | Added credit for Olsen on Headache: Music |
| 2018-12-05 18:05:26 | 100bit | Added credit for Olsen on Mental Hangower: Music |
| 2018-08-26 08:02:51 | menace | Added credit for Olsen on Amorphis Pack #5: Music |
| 2018-07-06 02:46:33 | menace | Added credit for Olsen on Old Stuff: Music |
| 2017-05-31 12:11:30 | menace | Set real name |
| 2017-05-31 12:10:53 | menace | Added Olsen as a member of Amorphis |
| 2014-03-29 14:31:19 | dipswitch | Added link http://noname.c64.org/csdb/scener/?id=3834 |
| 2014-03-29 14:31:03 | dipswitch | Added Olsen as a member of Albion Crew |
| 2014-03-29 14:30:56 | dipswitch | Set location to Poland |
| 2014-03-29 14:30:41 | dipswitch | Added credit for Olsen on Vertex: Music |