This CD demonstrates that smartly constructed compositions can have a captivating atmosphere and be a lot of fun at the same time. Henning Sieverts draws on the immense possibilities of the systematic and masterfully exploits these possibilities. With his ear attuned to continual change, Sieverts has made subtle use of symmetric material in the pieces on this CD. The music grooves, twitters, warbles, frazzles, and dazzles, absorbing and impulsive as only the most vibrantly-played jazz can be. And at the bottom of it all lies a meticulously conceived structure. The result: the seemingly artificial can be so natural.