Complex sentence: At the same time, they participated in the recording sessions English guitarist Allan Holdsworth and drummer Ron Powell, as the fixation was made with the Moscow Philharmonic Orchestra in the studio GDRZ Studio-5.
Split into simpler sentences: At the same time, they participated in the recording sessions English guitarist Allan Holdsworth and drummer Ron Powell. The mixed was made with the Moscow Philharmonic Orchestra in the studio GDRZ Studio-5.