I do not always choose to struggle with difficulties and play my full potential. I make my pieces difficult whenever I please, according to my disposition and that of my audience. It is in this concise manner that Carl Friedrich Abel characterized his performance skills, which in the life of the composer were widely recognized as a unique phenomenon. The album by Krzysztof Firius, Anna Firius, and Tomasz Pokrzywinski includes selected ABBA gambic works from the recently discovered Maltzan book collection, made public by the Polish musicologist Sonia Wronkowska.