This post has been updated.

Butch Warren, the D.C. native who became the house bassist for Blue Note Records in the 1960s, will be remembered during jazz jam sessions at the Westminster Presbyterian Church in Southwest Washington and at the Columbia Station jazz club in Adams Morgan on Sunday, Oct. 20.

Warren, 74, died of lung cancer on Saturday.

Butch Warren, pictured performing with the Peter Edelman at Columbia Station in April, will be remembered with a memorial jam session. (Photo by Astrid Riecken For The Washington Post)

Pianist Peter Edelman, who helped support Warren in his troubled later years, and played with him during regular gigs around Washington, says there will be a memorial service for Warren at the church on Tuesday, Oct. 15, with a viewing at 10 a.m. and a funeral at 11 a.m. The jam session is the following Sunday from 3 to 6 p.m. Warren was a regular at Westminster''s weekly jazz jam sessions for years.

Edelman says Columbia Station, where Warren performed for four years, will hold a memorial jam session the same night, from 9 p.m. to 1 a.m. Edelman and his trio also perform at the Adams Morgan jazz club every Wednesday from 8 p.m. to midnight.