| 2021-12-13 |  Slammin' Hard Techno, Vol. 12 @ LW Recordings @ 2021-12-13 | 1 | Hard Techno | Karol Melinger - Only A Test (Original Mix)6:35 | |
| 2021-08-23 |  Only A Test EP @ Codein Music @ 2021-08-23 | 1 | Hard Techno | Karol Melinger - Only A Test (Original Mix)6:35 | |
| 2021-08-23 | Only A Test EP @ Codein Music @ 2021-08-23 | 2 | Hard Techno | Karol Melinger - Overcrow (Original Mix)5:51 | |