[1] He taught himself both drums and piano, then studied both at Det Rytmiske Musikkonservatorium in Copenhagen.

[1] Dahl said that, "As a pianist, I am greatly influenced by Jørgen Nielsen and later, Butch Lacy who had a significant impact on my musical identity both as a mentor, icon and spiritual teacher.

[1] He was part of tenor saxophonist Thomas Agergaard's quartet from 1991 and drummer Ed Thigpen's Rhythm Features band from 1998.

[2] He taught piano at the Danish Rhythmic Conservatory between 2012 and 2015, but said that he resigned because his "spiritual and highly religious approach to understanding what art really is caused certain conflicts with the general idea of the schools programmes".

[2] He said in 2020: "My pictures vary from the almost golden age of painting yet set in a modern context to specifically complex abstractions.