A work in which the double bass takes on the role of soloist opposite the orchestra is one of the rarities. On the release Deep Dive with music by Kari Beate Tandberg, we find the work Det with the Norwegian Radio Orchestra and Marius Flatby as soloist.

The sore, fragile and heartfelt expression suits the big double bass well. In addition to the obviously virtuosic and offensive playing, the soloist's voice offers percussive and whimsical instrumental techniques within a range of registers that few other instruments can accommodate.

The concert recording from 13 January 2023 includes in addition to the double bass concerto, the orchestral work Fabel. The latter is more dramatic in nature and represents a musical fantasy world "characterised by vigilance in the face of looming dangers and by battles being fought", as described in the programme introduction. Or it can illustrate the earth as an organism - its internal energy and external forces of nature.

The chamber work Porphyry Imitations contrasts the two orchestral works. Performers by Ingvild Habbestad, violin, and Joachim Kwetzinsky, piano. The grainy pattern of the volcanic rock rhombic porphyry forms the starting point for the work's musical associations. This is also a recording from a previous concert in the NRK Store Studio in 2017.