Charlotte Rich-Griffin with Ali and Sundry
The band is Ali, Mike Green, Adam Rich-Griffin and Dave Ledsam - as seen at Chippenham's virtual contra in May. Charlotte and the band will be broadcasting live from Ealing.
A few groups around the UK are planning to meet outdoors to take part, where they can find enough outdoor space with good WiFi.
Tunes and dots
Most of the tunes are on this List of Tunes for 10th July
One of the music sessions used Homage a Philippe Bruneau by Guy Loyer.
The last waltz was Moonlight Moorings by Heather Bexon, played by Fromage à Trois. Here is the Moonlight Moorings video
Other virtual events
See what happened at our other online dances on the Events page
You can find more videos on the London Barndance YouTube channel