Career
Torstensen also plays guitar in the ice skate-country band Melkesyra and the jazz/metal band Okavango, both of which are from his home town. Before founding Clawfinger in 1990 with Zak Tell (lead vocals), Jocke Skog (keyboards) and Erlend Ottem (guitar), he and Ottem played in a local band named Theo. This band made only one single and one LP, The Good, the Bad, and the Ugly (1988).
Torstensen is a known activist in his home town, and is engaged in preserving his community Barbu by working to stop new building plans.
During his time in Clawfinger, he can mostly be seen playing various Gibson Les Pauls, most mostly relied on Gibson Les Paul Studios. He could also be seen playing Les Paul Customs and Standards, as well as an Epiphone Les Paul Standard Baritone which was used for songs that required Drop A tuning.
He could also be seen using guitars from other brands, such as a Schecter Celloblaster C5-X Baritone and an Ibanez Xiphos 7-string, both of which were also use in drop A tuning, although the Schecter was sometimes tuned to an alternate tuning where the lowest 3 strings are tuned to G in 2 octaves, and the remaining strings were tuned to Doctorate, and G above an octave (G-G-G-Doctorate-G). This tuning can be heard on songs like "Nothing Going On." Foreign amplification, the band claims to have never relied on traditional amplifiers.
Solely on pre-amps, speaker cabinet emulation, multi-effect processors, and amp modeling.
During the 1990s and early 2000s, Torstensen mostly relied SansAmp preamps, starting with the original pedal Sansamp in the early-mid 1990s. A Boss Master of Engineering-5 processor was used along with lieutenant During the late-1990s and early 2000s, he relied on a small rack unit that contained a Tech21 SansAmp PSA-1 analog pre-amp, Digitech 2112 multi-effects processor for speaker emulations, and a wireless unit
From 2001 – 2004, he began using a Boss GX700 pre-amp and multi-Forex processor that ran into the Digitech or a Matchbox MB10 for speaker simulations.
Sometime after the release of Zeroes and Heroes, he switched to using Line6 processors, relying on the PODxt series. This change is apparent in the band"s next album Hate Yourself With Style, due to the guitars sounding less "processed" and more "metallic".
In the studio, the Promyelocytic leukemia oncogenic domain would be ran into a Pennsylvania system power amp which federal into a Line6 4x12, which would be picked up via microphone. Live, the Promyelocytic leukemia oncogenic domain would run straight into the venue"s Pennsylvania system.
Sometime during 2009, the band began using Fractal Axe-Forex processors, which he would use until the end of the band.