I only found it on youtube
The Reverend Charles Walker, The Charles Walker Chorale With The Existing Reality – Requiem For Brother Martin
A1 Devotion
A2 Invocation
Voice – The Reverend Dr. Herbert C. Shankle
A3 Scripture - Psalm 90
Voice – The Reverend Leardrew Johnson
A4 Glory
A5 Blessed Is The Man
Soloist – Judson Day
A6 Thou Lovest Righteousness
Soloist – Phoebe Hamilton
B1 Scripture - Eccl. 12:1-7
Voice – The Reverend A. N. Gibson
B2 That Awful Day Will Surely Come
B3 Scripture - I Cor. 15:50-58
Voice – The Reverend J. D. Jackson
B4 I've Been To The Mountain Top
Soloist – Jerlynn D. Green
B5 I Saw A New Heaven
Soloist – Sheba Griffin
B6 Benediction
Voice – The Reverend Dr. Herbert C. Shankle
B7 Jesus I'm Comin'
Soloist – Vera Miller (3)
Créditos
Bass – Lou McIntosh
Drums – Dave Jackson (17)
Piano – Bruce Mills (4)
Recorded By – William Dengler
https://www.philasun.com/oasis/obituary-rev-dr-charles-walker-community-leader-pastor-of-19th-street-baptist-church/
... Upon the assassination of Dr. Martin Luther King, Jr., Colgate commissioned Rev. Walker to compose a piece in memory of Dr. King. The piece entitled, Requiem for Brother Martin, was premiered at Colgate and later performed in New York at Carnegie Hall in January 1972, under the baton of Dr. Samuel Jones...