Three duos--"Tandem Spaces"--and two solos--"Dry Swing"(s)-between drummer Gunter Baby Sommer, who was celebrating his 70th birthday the year of this recording, and younger generation pianist and Euphorium label-leader Oliver Schwerdt, the duos an exciting set of exchanges often building to high speed, with Schwerdt's solo work engrossingly intricate and quick-witted.