Deep Purple performed on this day in 1970 at Fairfield Hall in Croydon, England.
This concert was comparatively early in the In Rock World Tour, undertaken to support the album of the same name. The In Rock World Tour was Deep Purple’s second lineup’s second major tour, following on the heels of the European Tour. This tour would see the Mark II lineup playing in the United States for the first time.
The concert was fairly standard for their live work from the In Rock World Tour, primarily featuring work from the Deep Purple In Rock album. By this time, Deep Purple had dropped their Mark I material from their setlist. As well as songs from In Rock, the band included a song by the Rolling Stones, “Paint it Black”, and two by Little Richard, “Lucille” and “Good Golly Miss Molly”.
Due to Jon Lord having suffered an injury during his tenure with his previous band The Artwoods, he occasionally suffered from back pain. This became so serious during this time period that one concert immediately preceding and two concerts following this one had to be cancelled. The band continued with their tour the following week in Germany.
The concert has been recorded and has not been officially released. It is in circulation online.
The venue at which they performed, Fairfield Halls, stands on what was once a nineteenth-century fair ground. It was built in 1962 with multiple performing arts venues involved, and has been a significant concert site since. Most notably, Fairfield Halls was the site of a performance by the Nice in 1969 where they recorded their album Five Bridges.
The location is at the time of this writing undergoing redevelopment (source), and is scheduled for reopening soon.
Edit on 2020-09-04: Added information. Updated formatting. Optimized for new site.