Wolfgang's Vault website put online the first 35 min of the Carnegie Hall show online. Donny recorded it on june 30th 1973 in NYC, few days after the release of Extension Of A Man. That day, Donny played twice and this show appears to be the "afternoon" one. All songs have already been released except The Ghetto & Band Intro. Some are slightly different, however. You can buy this set for only $8 on Wolfgang's Vault.
Setlist
Intro (slightly longer)
Flyng Easy (released on These Songs For You, live!)
Valdez In The Country (incl. speech on Extension Of A Man)
Someday We'll All Be Free (released on These Songs For You, live!)
Band intro (never heard before)
Nu-Po (un-remixed version from In Performance)
Love, Love, Love (different version from the french boxset)
The Ghetto (never heard before)
Band
Donny Hathaway - vocals, piano, electric piano Gil Silva, from NYC - guitar Chuggy Carter, from NYC - congas Bassie Saunders, from Richmond - bass