There is an article about blind tracery in the Free Dictionary and it's called Blind Tracery.

One of the premiere practitioners of traditional klezmer on the trombone, and a rapidly rising voice in experimental music, is trombonist and composer Dan Blacksberg.Blacksberg has developed a complex style to carve out new spaces for the trombone in modern experimental and Jewish music.More.

You could also like the architecture if you like it.

It's all there in the bass sound.Each time I listen to the pieces, they reveal different aspects.This album is very contemporary and explorative, and at times reaffirms the power of the instrument's tradition.It's olivkon.

Total mastery of patience, time, and drama creates a constantly engaging journey that never gets boring or dull: in fact the harder you listen the better it gets!Somehow, Sorey et al.It is possible to combine the deep listening of the best jazz with the sense of every tone and sound being worth a universe of listening, which could be the accompaniment to an ancient ritual.The recording is perfect.Giles.