[1] In 1998, he released his first album as leader, Heyday, with his band Jagged Sky (featuring David Binney, Ben Monder, and Kenny Wollesen).

[2] Those with whom he has and continues to work include Tim Berne,[4] Uri Caine, Fred Hersch, Don Byron, Dave Douglas, and Erik Friedlander.

[2] The DownBeat reviewer of Vesper, a collaboration between Gress and the trio expEAR, wrote that the bassist "has exquisite time and a composer's sense of line, a combination that allows him an insightful level of counterpoint in his playing".

[6] The DownBeat reviewer of Gress's The Sky inside wrote that he "favors a focused restraint, a sort of concentrated tension that wrings the maximum inspiration from minimal elements, and which maintains a taut severity even when spare free passages burst into angular swing".

[7] With Kenny Werner With John Abercrombie With Tim Berne With Uri Caine With Joint Venture With Yelena Eckemoff