In my post Detroit 67, among several clips of the great Aretha Franklin I featured her extraordinary live sessions in January 1972 at the New Temple Missionary Baptist Church in LA. The double album Amazing Grace was released that year to huge acclaim, but the documentary had to wait right until 2018 to see the light of day. For anyone who hasn’t yet managed to do so, you can still find it on BBC i-Player (here)—otherwise, one can always buy it… 
BBC2 followed the film up with the documentary Respect.
Recorded over two evening sessions, the film Amazing Grace is all the more effective for showing its workings, complete with its calculated planning, technical hitches, and even piano-tuning. Yet despite the constraints of live recording, these were clearly inspired celebrations—just like many musical gatherings around the world (see What is Serious music?!, under “Serious world music”).
Between numbers, Aretha’s focus sometimes makes her look pensive, almost frail—but as she sings she becomes a spirit medium, a vessel for the Holy Spirit, possessed with all the joy and pain of Gospel.
With the MC Reverend James Cleveland adroitly mediating sacred and secular, Aretha is backed by the Southern California Community Choir, who are also spurred on by the balletic Reverend Alexander Hamilton. Among very few white faces in the ecstatic congregation are Mick Jagger and Charlie Watts.
On both evenings the tone is set by a devotional opening song (Wholy Holy and Mary don’t weep), followed by rousing up-tempo numbers like What a friend we have in Jesus, How I got over, All go back, I’m climbing higher mountains, as well as the ensemble interactions of Precious memories (“Sacred secrets will unfold”) and Precious Lord, take my hand/You’ve got a friend in Jesus.
The way Aretha opens in slow free-tempo is always moving—her final song (from 1.12.01), I have heard of a land on the far away strand, ‘Tis the beautiful home of the soul where we shall never grow old, is a whole seven-minute alap in itself—just as inspired as Indian dhrupad.
Most miraculous of all is the title track Amazing Grace (from 37.04; for the audio version, see under Detroit 67)—a long, slow meditation (without clearly defined beat or melody!) that leaves the congregation, the choir, Rev. Cleveland, and Aretha herself in tears.
 Among many reviews: