Bear Family has published a 10-CD boxed set called Songs for Political Action. Several web pages that describe that set say that SONG OF MY HANDS, written and performed by "Bernie Asbel" (sic), is included in it.

However, it appears that the correct spelling is Asbell.

Sing Out! The Folk Song Magazine published an obituary of Bernie Asbell in summer, 2001.

Bernie—or Bernard—Asbell was better known as a writer of nonfiction books and articles and as a writing teacher.

There is an obituary and photo of Bernie Asbell (in .pdf format) in the newsletter of the American Society of Jounalists and Authors.

Here are the books he wrote or edited as listed by the Library of Congress:

When F.D.R. Died. - 1961
New Improved American. - 1965
Careers in Urban Affairs: Six Young People Talk about Their Professions in the Inner City. - 1970
What Lawyers Really Do: Six Lawyers Talk about Their Life and Work. - 1970
F. D. R. Memoirs, As Written by Bernard Asbell. Introd. by Anna Roosevelt Halsted. - 1973
Tapping the Human Resource: A Strategy for Productivity / [By] Clair F. Vough with Bernard Asbell. - 1975
The Senate Nobody Knows / Bernard Asbell. - 1978
White Coat, White Cane: The Extraordinary Odyssey of a Blind Physician / David Hartman and Bernard Asbell. - 1978
Productivity, A Practical Program for Improving Efficiency / Clair F. Vough with Bernard Asbell. - 1979
Mother and Daughter: The Letters of Eleanor and Anna Roosevelt / Edited By Bernard Asbell. - 1982
Transit Point Moscow / Gerald Amster and Bernard Asbell. - 1985
Paterno: By the Book / Joe Paterno with Bernard Asbell. - 1989
What They Know about You / Bernard Asbell with Karen Wynn. – 1991
The Book of You / Bernard Asbell, Karen Wynn - 1992
Pill: A Biography of the Drug That Changed the World / Bernard Asbell. - 1995