Listen to this sample of Michael Nesmith performing at McCabes in Santa Monica, California in August 1973 that was shared on Facebook by Ed Heffelfinger. Red Rhodes accompanies Nez on pedal steel:
Ed was asked to clarify the date of the recording, and responded with the following:
A big thanks to David Marcone for alerting the Live Almanac about this posting!
UPDATE 2/12/2018: Monkees archivist Andrew Sandoval confirmed in a comment on the Live Almanac's Facebook page that a full recording of yet another 1973 performance around the time of the McCabe's show does indeed exist:
Live in 2021