| Title | Highest Position | Date | Buy |
|---|---|---|---|
| A Whiter Shade of Pale | 11 | 23 Feb 2022 | $1.29 buy |
| A Whiter Shade of Pale (Original Single Version (2007 Remaster)) | 94 | 13 Feb 2025 | $1.29 buy |
| Conquistador (Live at the Northern Alberta Jubilee Auditorium, Canada, 11/18/71) | 69 | 23 Feb 2022 | $1.29 buy |
| A Whiter Shade of Pale (50th Anniversary Stereo Mix) | 24 | 23 Feb 2022 | $1.29 buy |
Procol Harum chart performance in other countries: